Donald A Buckley

US Patent:

40313000, Jun 21, 1977

Filed:

Nov 13, 1975

Appl. No.:

5/631444

Inventors:

Warren A. Thaler - Matawan NJ
Donald J. Buckley - Plainfield NJ
Joseph P. Kennedy - Akron OH

Assignee:

Exxon Research and Engineering Company - Linden NJ

International Classification:

C08F23206

US Classification:

526308

Abstract:

Substantially gel-free, high molecular weight, high unsaturation copolymers of isobutylene and cyclopentadiene having a number average molecular weight of at least 90,000 and a mole percent of unsaturation of at least 5% and the process for preparing said polymers which comprises carrying out the polymerization in a homogeneous phase, introducing to the system either an aluminum halide in a soluble form or a hydrocarbylaluminum dihalide and carrying the reaction out at a temperature of less than about -100. degree. C.

US Patent:

41396952, Feb 13, 1979

Filed:

Apr 14, 1977

Appl. No.:

5/787366

Inventors:

Warren A. Thaler - Matawan NJ
Donald J. Buckley - Plainfield NJ
Joseph P. Kennedy - Akron OH

Assignee:

Exxon Research & Engineering Co. - Florham Park NJ

International Classification:

C08F21012

US Classification:

526308

Abstract:

Substantially gel-free high unsaturation copolymers of isobutylene and methylcyclopentadiene and high unsaturation terpolymers of isobutylene cyclopentadiene and methylcyclopentadiene and terpolymers of isobutylene, isoprene and methylcyclopentadiene having a number average molecular weight of at least about 120,000 and a mole percent of unsaturation of at least 5% and the process for preparing said polymers which comprises carrying out the polymerization in a homogeneous phase, introducing to the system either an aluminum halide in a soluble form or a hydrocarbylaluminum dihalide and carrying the reaction out at a temperature of less than about -100. degree. C.

US Patent:

42150221, Jul 29, 1980

Filed:

Oct 16, 1978

Appl. No.:

5/952241

Inventors:

Donald J. Buckley - Plainfield NJ
Warren A. Thaler - Matawan NJ
Joseph P. Kennedy - Akron OH

Assignee:

Exxon Research & Engineering Co. - Florham Park NJ

International Classification:

C08F 834

US Classification:

260 5

Abstract:

Substantially gel free, high molecular weight, high unsaturation copolymers of isobutylene and cyclo-conjugated dienes having a number-average molecular weight of about 30,000 to about 90,000 and a mole % of unsaturation of about 5 to about 45 are prepared by a polymerization in a homogeneous phase, wherein the catalyst which is a hydrocarbyl aluminum dihalide or aluminum halide type catalyst dissolved in an aliphatic type solvent is added to a mixture of the isobutylene, cyclo-conjugated diene, and an aliphatic cosolvent and the polymerization reaction is carried out at a temperature of about -80. degree. to about -110. degree. C.

US Patent:

42293251, Oct 21, 1980

Filed:

Oct 11, 1978

Appl. No.:

5/950417

Inventors:

Warren A. Thaler - Matawan NJ
Donald J. Buckley - Plainfield NJ
Kennedy Joseph P. - Akron OH

Assignee:

Exxon Research & Engineering Co. - Florham Park NJ

International Classification:

C08C 1930
C08J 324
C08K 536

US Classification:

260 5

Abstract:

Substantially gel-free, high unsaturation copolymers of isobutylene and isoprene and high unsaturation terpolymers of isobutylene, isoprene and cyclopentadiene having a number average molecular weight of at least about 90,000 and a mole percent of unsaturation of at least 5% and the process for preparing said polymers which comprises carrying out the polymerization in a homogeneous phase, introducing to the system either an aluminum halide in a soluble form or a hydrocarbylaluminum dihalide and carrying the reaction out at a temperature of less than about -100. degree. C. Vulcanizable compositions are formed from the co- and ter- polymers by reacting them with a vulcanizing amount of sulfur donor and a delayed action accelerator, wherein the vulcanized compositions can be extended with fillers, non-polar process oils and rubbers.

US Patent:

41535847, May 8, 1979

Filed:

Apr 20, 1978

Appl. No.:

5/898473

Inventors:

Warren A. Thaler - Matawan NJ
Donald J. Buckley - Plainfield NJ
Joseph P. Kennedy - Akron OH

Assignee:

Exxon Research & Engineering Co. - Florham Park NJ

International Classification:

C08C 1930
C08J 324
C08K 536

US Classification:

260 5

Abstract:

Substantially gel-free high unsaturation copolymers of isobutylene and methylcyclopentadiene and high unsaturation terpolymers of isobutylene cyclopentadiene and methylcyclopentadiene and terpolymers of isobutylene, isoprene and methylcyclopentadiene having a number average molecular weight of at least about 120,000 and a mole percent of unsaturation of at least 5% and the process for preparing said polymers which comprises carrying out the polymerization in a homogeneous phase, introducing to the system either an aluminum halide in a soluble form or a hydrocarbylaluminum dihalide and carrying the reaction out at a temperature of less than about -100. degree. C.

US Patent:

41513436, Apr 24, 1979

Filed:

Apr 18, 1977

Appl. No.:

5/788504

Inventors:

Warren A. Thaler - Matawan NJ
Donald J. Buckley - Plainfield NJ
Joseph P. Kennedy - Akron OH

Assignee:

Exxon Research & Engineering Co. - Florham Park NJ

International Classification:

C08F23206
C08F21012

US Classification:

526308

Abstract:

Substantially gel-free, high unsaturation copolymers of isoolefin and diolefin and high unsaturation terpolymers of isoolefin, acyclic diene and cyclic diene having a number average molecular weight of at least about 90,000 and a mole percent of unsaturation of at least 5% and the process for preparing said polymers which comprises carrying out the polymerization in a homogeneous phase, introducing to the system either an aluminum halide in a soluble form or a hydrocarbylaluminum dihalide and carrying the reaction out at a temperature of less than about -100. degree. C.

US Patent:

41537734, May 8, 1979

Filed:

Jun 6, 1977

Appl. No.:

5/803596

Inventors:

Donald J. Buckley - Plainfield NJ
Warren A. Thaler - Matawan NJ
Joseph P. Kennedy - Akron OH

Assignee:

Exxon Research & Engineering Co. - Florham Park NJ

International Classification:

C08F21012

US Classification:

526308

Abstract:

Substantially gel free, high molecular weight, high unsaturation copolymers of isobutylene and cyclo-conjugated dienes having a number-average molecular weight of about 30,000 to about 90,000 and a mole % of unsaturation of about 5 to about 45 are prepared by a polymerization in a homogeneous phase, wherein the catalyst which is a hydrocarbyl aluminum dihalide or aluminum halide type catalyst dissolved in an aliphatic type solvent is added to a mixture of the isobutylene, cyclo-conjugated diene, and an aliphatic cosolvent and the polymerization reaction is carried out at a temperature of about -80. degree. to about -110. degree. C.