Roger K Graham

US Patent:

54476690, Sep 5, 1995

Filed:

Jan 5, 1995

Appl. No.:

8/368940

Inventors:

Newman M. Bortnick - Oreland PA
Roger K. Graham - Moorestown NJ
Edward E. LaFleur - Warminster PA
William J. Work - Huntingdon Valley PA

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08L 300

US Classification:

264101

Abstract:

Blends of starch with acrylic polymers containing at least one of copolymerized acid or amide groups may be melt-processed into useful thermoplastic articles.

US Patent:

51284103, Jul 7, 1992

Filed:

Jun 11, 1990

Appl. No.:

7/536384

Inventors:

Newman Bortnick - Oreland PA
Roger K. Graham - Moorestown NJ
William J. Work - Huntingdon Valley PA

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08L 5106
C08F25502
C08F25508

US Classification:

525 71

Abstract:

A novel graft copolymer capable of imparting to a polyolefin when blended therewith high tensile modulus and high sag resistance without increasing melt viscosity, and a method of making the same. The graft copolymer is a polyolefin having a relatively high weight-average molecular weight methacrylate polymer grafted thereto. The graft copolymer is formed by dissolving or swelling a non-polar polyolefin in an inert hydrocarbon solvent, heating to dissolve the polyolefin, and while stirring the mixture, adding a methacrylate monomer, together with an initiator to produce a constant, low concentration of radicals, to from a graft copolymer with a high molecular weight polymer chain covalently bonded or grafted to the polyolefin backbone. The graft copolymer can be separated from the solvent, isolated by volatilizing the solvent, for example in a devolatilizing extruder, and extruded into a desired shape such as a sheet, tube or the like. This graft copolymer can be blended with a polyolefin matrix.

US Patent:

53787587, Jan 3, 1995

Filed:

Dec 21, 1993

Appl. No.:

8/171036

Inventors:

Robert M. Amici - Doylestown PA
Newman M. Bortnick - Oreland PA
Roger K. Graham - Moorestown NJ
Edward E. LaFleur - Warminster PA
William J. Work - Huntingdon Valley PA

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08L 2904
C08L 2902
C08L 3302

US Classification:

525 57

Abstract:

Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids, the copolymers prefereably containing an adhesion-promoting functionality, the blend preferably containing low levels of a plasticizer to improve melt flow, and the blends in molten form utilized as hot melt adhesives for the bonding of wood, paper, and other celulosic articles.

US Patent:

54038758, Apr 4, 1995

Filed:

May 12, 1994

Appl. No.:

8/241550

Inventors:

Newman M. Bortnick - Oreland PA
Roger K. Graham - Moorestown NJ
Edward E. LaFleur - Warminster PA
William J. Work - Huntingdon Valley PA

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08L 300

US Classification:

524 47

Abstract:

Blends of starch with acrylic polymers containing at least one of copolymerized acid or amide groups may be melt-processed into useful thermoplastic articles.

US Patent:

49579746, Sep 18, 1990

Filed:

Mar 1, 1989

Appl. No.:

7/315501

Inventors:

Casmir S. Ilenda - Hulmeville PA
Newman Bortnick - Oreland PA
Roger K. Graham - Moorestown NJ
William J. Work - Huntingdon Valley PA

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08F25502
C08F26702

US Classification:

525301

Abstract:

A novel graft copolymer capable of imparting to a polyolefin when blended therewith high tensile modulus and high sag resistance without increasing melt viscosity, and a method of making the same. The graft copolymer is a polyolefin having a relatively high weight-average molecular weight methacrylate polymer grafted thereto. The graft copolymer is formed by dissolving or swelling a non-polar polyolefin in an inert hydrocarbon solvent, heating to dissolve the polyolefin, and while stirring the mixture, adding a methacrylate monomer, together with an initiator to produce a constant, low concentration of radicals, to form a graft copolymer with a high molecular weight polymer chain covalently bonded or grafted to the polyolefin backbone. The graft copolymer can be separated from the solvent, isolated by volatilizing the solvent, for example in a devolatilizing extruder, and extruded into a desired shape such as a sheet, tube or the like. This graft copolymer can be blended with a polyolefin matrix.

US Patent:

53628020, Nov 8, 1994

Filed:

Mar 18, 1994

Appl. No.:

8/210403

Inventors:

Robert M. Amici - Doylestown PA
Newman M. Bortnick - Oreland PA
Roger K. Graham - Moorestown NJ
Edward E. LaFleur - Warminster PA
William J. Work - Huntingdon Valley PA

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08G 6348

US Classification:

525 57

Abstract:

Polymers containing a high percentage of vinyl alcohol units, especially when treated to remove impurities, when blended with copolymers of alkyl (meth)acrylates, N-vinyllactams or N-vinylamides, and unsaturated acids, preferably further with a small amount of plasticizer, may be applied as hot melt adhesives to paper, wood, and other cellulosic articles.

US Patent:

39857034, Oct 12, 1976

Filed:

Jun 24, 1975

Appl. No.:

5/589972

Inventors:

William J. Ferry - Fairless Hills PA
Donald H. Jones - Vincentown NJ
Roger K. Graham - Moorestown NJ

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08J 320
C08K 304
C08K 326
C08K 336

US Classification:

260 4229

Abstract:

A process for the isolation of acrylic core/shell polymers with a high percentage of a rubbery phase by spraydrying in the presence of inert particulate material such as fumed silica in the gaseous drying medium.

US Patent:

55083226, Apr 16, 1996

Filed:

Jan 5, 1995

Appl. No.:

8/369200

Inventors:

Newman M. Bortnick - Oreland PA
Roger K. Graham - Moorestown NJ
Edward E. LaFleur - Warminster PA
William J. Work - Huntingdon Valley PA

International Classification:

C08L 302

US Classification:

523201

Abstract:

Blends of starch with acrylic polymers containing at least one of copolymerized acid or amide groups may be melt-processed into useful thermoplastic articles.