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Patent Assignment Assignor Details

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Assignor Name : REXENE CORPORATION

Total Assignments: 6

Assignment: 1

Reel/Frame:	006359/0313			Pages:	19
		Recorded:	12/18/1992
Conveyance:	SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor

REXENE CORPORATION

Exec Dt:

09/18/1992

Assignee

CHEMICAL BANK

450 W. 33RD STREET

NEW YORK, NEW YORK 10011

Properties

Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #
4105856	NONE		04076624	4076948	NONE		04766476	4058555	NONE		04843028
4008049	NONE		05302309	3911052	NONE		05340405	3929932	NONE		05344683
3904703	NONE		05349326	3907919	NONE		05349328	3902515	NONE		05356859
3940379	NONE		05362134	3922296	NONE		05426021	3912701	NONE		05454509
4002813	NONE		05497977	3960987	NONE		05508137	3951911	NONE		05526085
4007216	NONE		05576742	4027085	NONE		05578582	3937758	NONE		05592145
4006114	NONE		05635505	4065635	NONE		05641313	3997629	NONE		05644657
4075146	NONE		05645982	4059652	NONE		05677105	4049751	NONE		05680029
4076043	NONE		05701923	4279809	NONE		05705303	4224282	NONE		05739394
4095016	NONE		05750751	4061694	NONE		05753060	4091200	NONE		05780632
4168280	NONE		05907730	4163561	NONE		05934227	4331623	NONE		05944837
4181809	NONE		05956027	4184026	NONE		05970425	4197387	NONE		05972564
4255387	NONE		05974287	4374230	NONE		06024499	4298521	NONE		06024500
4210603	NONE		06030539	4225738	NONE		06032290	4279130	NONE		06041308
4246202	NONE		06041681	4280978	NONE		06041869	4229011	NONE		06054543
4284739	NONE		06064961	4339596	NONE		06094425	4271315	NONE		06094427
4291183	NONE		06116657	4291184	NONE		06116658	4393263	NONE		06116659
4277313	NONE		06134687	4300010	NONE		06144887	4284738	NONE		06177296
4308357	NONE		06198749	4353384	NONE		06199412	4316775	NONE		06204506
4342856	NONE		06206810	4442303	NONE		06214790	4351930	NONE		06232060
4365080	NONE		06265632	4382132	NONE		06269302	4334041	NONE		06283777
4379197	NONE		06326716	4429115	NONE		06338117	4384985	NONE		06345033
4363748	NONE		06345157	4413591	NONE		06352705	4654154	NONE		06426409
4452928	NONE		06440154	4472268	NONE		06458825	4434264	NONE		06477703
4535549	NONE		06548207	4540842	NONE		06571312	4508618	NONE		06616636
4514261	NONE		06646267	4814544	NONE		06675460	4543437	NONE		06685929
4543438	NONE		06685930	4540416	NONE		06687408	4684683	NONE		06762902
4704421	NONE		06762903	4692489	NONE		06762904	4666959	NONE		06807139
4629639	NONE		06812582	4671987	NONE		06848556	4629658	NONE		06871239
4736002	NONE		06880456	4710563	NONE		06896793	4701489	NONE		06904579
4815714	NONE		07092498	4832886	NONE		07092499	4778634	NONE		07110916
4847340	NONE		07156047	4859757	NONE		07184225	5051297	NONE		07340831
5059662	NONE		07484920	5064893	NONE		07490410	5066724	NONE		07506526
5091262	NONE		07572402	5266607	NONE		07714602	5334643	NONE		07725893
5176872	NONE		07836966	5439949	NONE		07883897	5324555	NONE		07897814
4082788	NONE		UNAVAILABLE

Correspondence name and address
	HAROLD E. MEIER
	GARDERE & WYNNE
	1601 ELM STREET, STE. 3000
	DALLAS, TX 75201

Assignment: 2

Reel/Frame:	006359/0339			Pages:	19
		Recorded:	12/18/1992
Conveyance:	SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor

REXENE CORPORATION

Exec Dt:

09/18/1992

Assignee

CHEMICAL BANK

450 W. 33RD STREET

NEW YORK, NEW YORK 10011

Properties

Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #
4105856	NONE		04076624	4076948	NONE		04766476	4058555	NONE		04843028
4008049	NONE		05302309	3911052	NONE		05340405	3929932	NONE		05344683
3904703	NONE		05349326	3907919	NONE		05349328	3902515	NONE		05356859
3940379	NONE		05362134	3922296	NONE		05426021	3912701	NONE		05454509
4002813	NONE		05497977	3960987	NONE		05508137	3951911	NONE		05526085
4007216	NONE		05576742	4027085	NONE		05578582	3937758	NONE		05592145
4006114	NONE		05635505	4065635	NONE		05641313	3997629	NONE		05644657
4075146	NONE		05645982	4059652	NONE		05677105	4049751	NONE		05680029
4076043	NONE		05701923	4279809	NONE		05705303	4224282	NONE		05739394
4095016	NONE		05750751	4061694	NONE		05753060	4091200	NONE		05780632
4168280	NONE		05907730	4163561	NONE		05934227	4331623	NONE		05944837
4181809	NONE		05956027	4184026	NONE		05970425	4197387	NONE		05972564
4255387	NONE		05974287	4374230	NONE		06024499	4298521	NONE		06024500
4210603	NONE		06030539	4225738	NONE		06032290	4279130	NONE		06041308
4246202	NONE		06041681	4280978	NONE		06041869	4229011	NONE		06054543
4284739	NONE		06064961	4339596	NONE		06094425	4271315	NONE		06094427
4291183	NONE		06116657	4291184	NONE		06116658	4393263	NONE		06116659
4277313	NONE		06134687	4300010	NONE		06144887	4284738	NONE		06177296
4308357	NONE		06198749	4353384	NONE		06199412	4316775	NONE		06204506
4342856	NONE		06206810	4442303	NONE		06214790	4351930	NONE		06232060
4365080	NONE		06265632	4382132	NONE		06269302	4334041	NONE		06283777
4379197	NONE		06326716	4429115	NONE		06338117	4384985	NONE		06345033
4363748	NONE		06345157	4413591	NONE		06352705	4654154	NONE		06426409
4452928	NONE		06440154	4472268	NONE		06458825	4434264	NONE		06477703
4535549	NONE		06548207	4540842	NONE		06571312	4508618	NONE		06616636
4514261	NONE		06646267	4814544	NONE		06675460	4543437	NONE		06685929
4543438	NONE		06685930	4540416	NONE		06687408	4684683	NONE		06762902
4704421	NONE		06762903	4692489	NONE		06762904	4666959	NONE		06807139
4629639	NONE		06812582	4671987	NONE		06848556	4629658	NONE		06871239
4736002	NONE		06880456	4710563	NONE		06896793	4701489	NONE		06904579
4815714	NONE		07092498	4832886	NONE		07092499	4778634	NONE		07110916
4847340	NONE		07156047	4859757	NONE		07184225	5051297	NONE		07340831
5059662	NONE		07484920	5064893	NONE		07490410	5066724	NONE		07506526
5091262	NONE		07572402	5266607	NONE		07714602	5334643	NONE		07725893
5176872	NONE		07836966	5439949	NONE		07883897	5324555	NONE		07897814
4082788	NONE		UNAVAILABLE

Correspondence name and address
	HAROLD E. MEIER
	GARDERE & WYNNE
	1601 ELM STREET, STE. 3000
	DALLAS, TX 75201

Assignment: 3

Reel/Frame:	007249/0117			Pages:	26
		Recorded:	12/16/1994
Conveyance:	RELEASE OF SECURITY INTEREST

Assignor

REXENE CORPORATION

Exec Dt:

11/29/1994

Assignee

BANK OF NOVA SCOTIA, AS AGENT, THE

600 PEACHTREE ST., N.E. SUITE 2700

ATLANTA, GEORGIA 30308

Properties

Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #
4065635	NONE		05641313	4075146	NONE		05645982	4059652	NONE		05677105
4076043	NONE		05701923	4279809	NONE		05705303	4224282	NONE		05739394
4095016	NONE		05750751	4061694	NONE		05753060	4091200	NONE		05780632
4163561	NONE		05934227	4331623	NONE		05944837	4184026	NONE		05970425
4197387	NONE		05972564	4255387	NONE		05974287	4374230	NONE		06024499
4298521	NONE		06024500	4280978	NONE		06041869	4229011	NONE		06054543
4284739	NONE		06064961	4291183	NONE		06116657	4291184	NONE		06116658
4393263	NONE		06116659	4277313	NONE		06134687	4284738	NONE		06177296
4308357	NONE		06198749	4353384	NONE		06199412	4342856	NONE		06206810
4442303	NONE		06214790	4382132	NONE		06269302	4379197	NONE		06326716
4384985	NONE		06345033	4413591	NONE		06352705	4654154	NONE		06426409
4452928	NONE		06440154	4434264	NONE		06477703	4540416	NONE		06687408
4684683	NONE		06762902	4704421	NONE		06762903	4692489	NONE		06762904
4666959	NONE		06807139	4671987	NONE		06848556	4736002	NONE		06880456
4710563	NONE		06896793	4701489	NONE		06904579	4815714	NONE		07092498
4832886	NONE		07092499	4778634	NONE		07110916	4847340	NONE		07156047
4859757	NONE		07184225	5051297	NONE		07340831	5059662	NONE		07484920
5064893	NONE		07490410	5066724	NONE		07506526	5091262	NONE		07572402
5266607	NONE		07714602	5334643	NONE		07725893	5176872	NONE		07836966
5439949	NONE		07883897	5324555	NONE		07897814	5403528	NONE		07934869
5376716	NONE		07937563	5302675	NONE		07941916	5459186	NONE		08168581

Correspondence name and address
	KEVIN M. HART
	VINSON & ELKINS, L.L.P.
	2713 FIRST CITY TOWER
	1001 FANNIN STREET
	HOUSTON, TX 77002-6760

Assignment: 4

Reel/Frame:	007249/0198			Pages:	18
		Recorded:	12/16/1994
Conveyance:	RELEASE OF SECURITY INTEREST IN PATENTS-COMPANY FIRST PRIORITY

Assignor

REXENE CORPORATION

Exec Dt:

11/29/1994

Assignee

BANK OF NOVA SCOTIA, THE, AS AGENT

600 PEACHTREE ST. N.W., SUITE 2700

ATLANTA, GEORGIA 30308

Properties

Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #
4065635	NONE		05641313	4075146	NONE		05645982	4059652	NONE		05677105
4076043	NONE		05701923	4279809	NONE		05705303	4224282	NONE		05739394
4095016	NONE		05750751	4061694	NONE		05753060	4091200	NONE		05780632
4163561	NONE		05934227	4331623	NONE		05944837	4184026	NONE		05970425
4197387	NONE		05972564	4255387	NONE		05974287	4374230	NONE		06024499
4298521	NONE		06024500	4280978	NONE		06041869	4229011	NONE		06054543
4284739	NONE		06064961	4291183	NONE		06116657	4291184	NONE		06116658
4393263	NONE		06116659	4277313	NONE		06134687	4284738	NONE		06177296
4308357	NONE		06198749	4353384	NONE		06199412	4342856	NONE		06206810
4442303	NONE		06214790	4382132	NONE		06269302	4379197	NONE		06326716
4384985	NONE		06345033	4654154	NONE		06426409	4452928	NONE		06440154
4434264	NONE		06477703	4540416	NONE		06687408	4666695	NONE		06742444
4684683	NONE		06762902	4704421	NONE		06762903	4692489	NONE		06762904
4671987	NONE		06848556	4736002	NONE		06880456	4710563	NONE		06896793
4701489	NONE		06904579	4815714	NONE		07092498	4832886	NONE		07092499
4778634	NONE		07110916	4847340	NONE		07156047	4859757	NONE		07184225
5051297	NONE		07340831	5064893	NONE		07490410	5066724	NONE		07506526
5091262	NONE		07572402	5266607	NONE		07714602	5334643	NONE		07725893
5176872	NONE		07836966	5439949	NONE		07883897	5324555	NONE		07897814
5403528	NONE		07934869	5376716	NONE		07937563	5302675	NONE		07941916
5459186	NONE		08168581

Correspondence name and address
	KEVIN M. HART
	VINSON & ELKINS, L.L.P.
	2713 FIRST CITY TOWER
	1001 FANNIN STREET
	HOUSTON, TX 77002-6760

Assignment: 5

Reel/Frame:	008077/0485			Pages:	26
		Recorded:	07/29/1996
Conveyance:	SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor

REXENE CORPORATION

Exec Dt:

04/24/1996

Assignee

BANK OF NOVA SCOTIA, THE

SUITE 2700

600 PEACHTREE ST., N.E.

ATLANTA, GEORGIA 30308

Properties

Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #
4279809	NONE		05705303	4224282	NONE		05739394	4163561	NONE		05934227
4331623	NONE		05944837	4184026	NONE		05970425	4197387	NONE		05972564
4255387	NONE		05974287	4374230	NONE		06024499	4298521	NONE		06024500
4280978	NONE		06041869	4229011	NONE		06054543	4284739	NONE		06064961
4291183	NONE		06116657	4291184	NONE		06116658	4393263	NONE		06116659
4277313	NONE		06134687	4284738	NONE		06177296	4308357	NONE		06198749
4353384	NONE		06199412	4342856	NONE		06206810	4442303	NONE		06214790
4379197	NONE		06326716	4452928	NONE		06440154	4434264	NONE		06477703
4540416	NONE		06687408	4684683	NONE		06762902	4704421	NONE		06762903
4692489	NONE		06762904	4666959	NONE		06807139	4671987	NONE		06848556
4736002	NONE		06880456	4710563	NONE		06896793	4701489	NONE		06904579
4815714	NONE		07092498	4832886	NONE		07092499	4778634	NONE		07110916
4847340	NONE		07156047	4859757	NONE		07184225	5051297	NONE		07340831
5059662	NONE		07484920	5064893	NONE		07490410	5066724	NONE		07506526
5091262	NONE		07572402	5266607	NONE		07714602	5334643	NONE		07725893
5176872	NONE		07836966	5439949	NONE		07883897	5324555	NONE		07897814
5403528	NONE		07934869	5376716	NONE		07937563	5302675	NONE		07941916
5459186	NONE		08168581	5472792	NONE		08250502	5575406	NONE		08367159
5681913	NONE		08473288	5637665	NONE		08473289	5714554	NONE		08483498
5807976	NONE		08598820

Correspondence name and address
	ANDREW G. DINOVO
	1001 FANNIN STREET
	2300 FIRST CITY TOWER
	HOUSTON, TX 77002-6760

Assignment: 6

Reel/Frame:	008715/0176			Pages:	15
		Recorded:	09/16/1997
Conveyance:	CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).

Assignor

REXENE CORPORATION

Exec Dt:

08/27/1997

Assignee

HUNTSMAN POLYMERS CORPORATION

500 HUNTSMAN WAY

SALT LAKE CITY, UTAH 84108

Properties

Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #	Pat #	Pub #	Intl #	App #
4279809	NONE		05705303	4224282	NONE		05739394	4168280	NONE		05907730
4163561	NONE		05934227	4331623	NONE		05944837	4181809	NONE		05956027
4184026	NONE		05970425	4197387	NONE		05972564	4255387	NONE		05974287
4374230	NONE		06024499	4298521	NONE		06024500	4210603	NONE		06030539
4225738	NONE		06032290	4279130	NONE		06041308	4246202	NONE		06041681
4280978	NONE		06041869	4229011	NONE		06054543	4284739	NONE		06064961
4339596	NONE		06094425	4271315	NONE		06094427	4291183	NONE		06116657
4291184	NONE		06116658	4393263	NONE		06116659	4277313	NONE		06134687
4300010	NONE		06144887	4284738	NONE		06177296	4308357	NONE		06198749
4353384	NONE		06199412	4316775	NONE		06204506	4342856	NONE		06206810
4442303	NONE		06214790	4379197	NONE		06326716	4452928	NONE		06440154
4434264	NONE		06477703	4540416	NONE		06687408	4684683	NONE		06762902
4704421	NONE		06762903	4692489	NONE		06762904	4666959	NONE		06807139
4671987	NONE		06848556	4736002	NONE		06880456	4710563	NONE		06896793
4701489	NONE		06904579	4815714	NONE		07092498	4832886	NONE		07092499
4778634	NONE		07110916	4847340	NONE		07156047	4859757	NONE		07184225
5051297	NONE		07340831	5059662	NONE		07484920	5064893	NONE		07490410
5066724	NONE		07506526	5091262	NONE		07572402	5266607	NONE		07714602
5334643	NONE		07725893	5176872	NONE		07836966	5439949	NONE		07883897
5324555	NONE		07897814	5403528	NONE		07934869	5376716	NONE		07937563
5302675	NONE		07941916	5459186	NONE		08168581	5681913	NONE		08473288
5637665	NONE		08473289	5714554	NONE		08483498	5807976	NONE		08598820
5948447	NONE		08630800	5948720	NONE		08779762	5723546	NONE		08822865
6100351	NONE		08878129

Correspondence name and address
	HUNTSMAN CORPORATION
	RUSSELL R. STOLLE
	P.O. BOX 15730
	AUSTIN, TX 78761

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