Roger N 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:

D2498960, Oct 10, 1978

Filed:

Jan 16, 1976

Appl. No.:

5/649701

Inventors:

Roger Graham - Hyattsville MD

International Classification:

D2702

US Classification:

D27 03

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:

D2565064, Aug 19, 1980

Filed:

Nov 14, 1978

Appl. No.:

5/960758

Inventors:

Roger A. Graham - Silver Spring MD

International Classification:

D2702

US Classification:

D27 03

US Patent:

D2485737, Jul 18, 1978

Filed:

Jan 16, 1976

Appl. No.:

5/649813

Inventors:

Roger Graham - Silver Spring MD

International Classification:

D2702

US Classification:

D27 03

US Patent:

41483278, Apr 10, 1979

Filed:

Jun 13, 1977

Appl. No.:

5/805698

Inventors:

Roger Graham - Silver Spring MD

International Classification:

A24F 114

US Classification:

131173

Abstract:

A water pipe for smoking has two superposed water chambers with a tobacco chamber leading to the lower of said water chambers, a goose neck tubular element communicating with both water chambers, a carb hole between said water chambers and an outlet above the uppermost of said water chambers so that smoke from burning tobacco in said tobacco chamber can be drawn through both water chambers to said outlet to cool said smoke.

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:

D2492814, Sep 5, 1978

Filed:

Jan 16, 1976

Appl. No.:

5/649697

Inventors:

Roger Graham - Silver Spring MD

International Classification:

D2702

US Classification:

D27 03