Paul J Keating

US Patent:

6841612, Jan 11, 2005

Filed:

Jun 15, 1998

Appl. No.:

09/445844

Inventors:

Shijun Yang - Maple Glen PA, US
Paul Joseph Keating - Newportville PA, US

Assignee:

Elf Atochem S.A. - Puteaux

International Classification:

C08L 3300

US Classification:

524523, 524447, 523523

Abstract:

Composite plastic compositions based on the dispersion of selected cross-linked polymers in certain thermoplastic matrices are disclosed. The composite compositions are readily formed and processed by thermal extrusion processes versus conventional casting processes. Preferred composite plastics compositions based on cross-linked poly(alkyl (meth)acrylate) polymers and modified poly(alkyl (meth)acrylate) thermoplastics are especially useful in the preparation of synthetic architectural materials having a mineral-like appearance, such as that of granite.

US Patent:

6878436, Apr 12, 2005

Filed:

May 8, 2003

Appl. No.:

10/431820

Inventors:

Jack J. Reilly - Blue Bell PA, US
Paul J. Keating - Newportville PA, US
Ryan R. Dirkx - Glenmore PA, US

Assignee:

Atofina - Puteaux

International Classification:

B32B005/00
H05B033/00

US Classification:

428221, 428212, 428332, 428327, 428690, 428917, 313506, 313510

Abstract:

Disclosed is a polished translucent co-extruded sheet having utility as a light diffusing protective cover or sign face for light emitting diode (LED) light sources and other purposes. The sheet is comprised of (a) a particle layer containing particles having a mean particle size of about 4 to 100 microns and having a particle size distribution of between 1-110 microns, at a loading of 1 to 60% melt blended with a thermoplastic matrix, wherein the particle and matrix have refractive indices that differ by greater than 0. 001 units of each other when measured in conformance with ASTM D 542; and (b) at least one substrate layer comprised of thermoplastic compositions, wherein the substrates have a refractive index within 0. 2 units of the refractive index of the particle layer matrix when measured in conformance with ASTM D 542.

US Patent:

7592394, Sep 22, 2009

Filed:

Dec 7, 2004

Appl. No.:

11/005921

Inventors:

Shijun Yang - Maple Glen PA, US
Paul Joseph Keating - Newportville PA, US

Assignee:

Arkema France - Colombes

International Classification:

C08L 33/02
C08L 33/04
C08L 33/20
C08L 35/02
C08L 9/02
C08L 9/06
C08L 23/00
C08F 8/00

US Classification:

525191, 525221, 525222, 525232, 525240, 525241

Abstract:

Composite plastic compositions based on the dispersion of selected crosslinked polymers in certain thermoplastic matrices are disclosed. The composite compositions are readily formed and processed by thermal extrusion processes versus conventional casting processes. Preferred composite plastic compositions based on crosslinked poly(alkyl (meth)acrylate) polymers and modified poly(alkyl (meth)acrylate) thermoplastics are especially useful in the preparation of synthetic architectural materials having a mineral-like appearance, such as that of granite.

US Patent:

52160602, Jun 1, 1993

Filed:

Aug 28, 1991

Appl. No.:

7/751421

Inventors:

Paul J. Keating - Newportville PA
Donald E. Roach - Willingboro NJ

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08F 2068

US Classification:

524379

Abstract:

The present invention is directed to methacrylic polymer compositions which may be used to form plastic products which have increased resistance to sterilizing radiation, such as gamma or electron beam irradiation.

US Patent:

50617478, Oct 29, 1991

Filed:

Aug 30, 1990

Appl. No.:

7/577821

Inventors:

Donald E. Roach - Willingboro NJ
Paul J. Keating - Newportville PA

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08F 624
C08F 2010

US Classification:

524379

Abstract:

Aliphatic alcohol, and high boiling point hydroxy compound additives are added to poly methyl methacrylate to improve the ultraviolet radiation resistance of the polymer. The additives may be incorporated into the poly methyl methacrylate by including the additives with the monomers prior to polymerization. Alternatively, the additives may be incorporated into the poly methylmethacrylate by addition to polymerized methyl methacrylate.

US Patent:

52505898, Oct 5, 1993

Filed:

Dec 10, 1992

Appl. No.:

7/988644

Inventors:

Paul J. Keating - Newportville PA
Donald E. Roach - Willingboro PA

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08F 2068

US Classification:

523206

Abstract:

The present invention is directed to methacrylic polymer compositions which may be used to form plastic products which have increased resistance to sterilizing radiation, such as gamma or electron beam irradiation.

US Patent:

54667569, Nov 14, 1995

Filed:

Sep 15, 1994

Appl. No.:

8/307992

Inventors:

Donald E. Roach - Willingboro NJ
Paul J. Keating - NewportVille PA

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08F 812

US Classification:

5253306

Abstract:

Aliphatic alcohol, and high boiling point hydroxy compound additives are added to poly methyl methacrylate to improve the ultraviolet radiation resistance of the polymer. The additives may be incorporated into the poly methyl methacrylate by including the additives with the monomers prior to polymerization. Alternatively, the additives may be incorporated into the poly methylmethacrylate by addition to polymerized methyl methacrylate.

US Patent:

51029405, Apr 7, 1992

Filed:

Mar 26, 1990

Appl. No.:

7/499104

Inventors:

Paul J. Keating - Newportville PA
Donald E. Roach - Willingboro NJ

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08F 2068

US Classification:

524379

Abstract:

The present invention is directed to methacrylic polymer compositions which may be used to form plastic products which have increased resistance to sterilizing radiation, such as gamma or electron beam irradiation.