Herbert S Rawlings

US Patent:

45336792, Aug 6, 1985

Filed:

Jun 28, 1982

Appl. No.:

6/392846

Inventors:

Herbert L. Rawlings - New Martinsville WV

Assignee:

Mobay Chemical Corporation - Pittsburgh PA

International Classification:

C08L 6702

US Classification:

523204

Abstract:

The present invention is directed to a thermoplastic molding composition comprising a high molecular weight polyester, a reinforcing amount of a reinforcing agent and a polyepoxy compound characterized in that it contains more than two terminal epoxy functionalities per molecule.

US Patent:

44878818, Dec 11, 1984

Filed:

Oct 3, 1983

Appl. No.:

6/538301

Inventors:

Herbert L. Rawlings - New Martinsville WV
Gerard E. Reinert - McMurray PA

Assignee:

Mobay Chemical Corporation - Pittsburgh PA

International Classification:

C08L 6900
C08K 340

US Classification:

524504

Abstract:

The present invention is directed to a thermoplastic molding composition comprising a blend of a thermoplastic aromatic polycarbonate resin, a graft elastomer, a polyanhydride and glass fibers, said composition is characterized by its improved impact performance.

US Patent:

40666174, Jan 3, 1978

Filed:

Aug 23, 1976

Appl. No.:

5/716601

Inventors:

Herbert L. Rawlings - New Martinsville WV
Arthur L. Baron - New Martinsville WV

Assignee:

Mobay Chemical Corporation - Pittsburgh PA

International Classification:

C08K 515

US Classification:

260 458A

Abstract:

Poly(alkylene terephthalates) are stabilized during high temperature processing by neutral esters of phosphorous acid having at least one oxetane group. The stabilized poly(alkylene terephthalates) are resistant to molecular weight degradation and discoloration during melt processing of the polymer when the polymer is being extruded and formed into molded articles.

US Patent:

40187381, Apr 19, 1977

Filed:

Feb 6, 1976

Appl. No.:

5/656058

Inventors:

Herbert L. Rawlings - New Martinsville WV

Assignee:

Mobay Chemical Corporation - Pittsburgh PA

International Classification:

C08K 336
C08K 906

US Classification:

260 40R

Abstract:

Mineral filled poly(butyleneterephthalate)s are comprised of a poly(butyleneterephthalate) resin and 10 to 50 percent by weight of a novaculite mineral filler having an average particle size of less than 5 microns. Articles molded from the novaculite filled poly(butyleneterephthalate) exhibit improved impact properties over typical fillers for poly(butyleneterephthalate) resins. Impact properties can be further improved by the addition of a silane coupling agent to the poly(butyleneterephthalate) novaculite blend.

US Patent:

44669127, Aug 21, 1984

Filed:

Sep 30, 1982

Appl. No.:

6/429914

Inventors:

Walter J. Phillips - McDonald PA
Herbert L. Rawlings - New Martinsville WV

Assignee:

Mobay Chemical Corporation - Pittsburgh PA

International Classification:

H01B 102

US Classification:

252512

Abstract:

Thermoplastic compositions comprising a polycarbonate resin, a graft copolymer and conductive particles are provided suitable for the preparation of molded articles characterized in that they provide an improved level of EMI shielding.

US Patent:

40703304, Jan 24, 1978

Filed:

Jan 23, 1976

Appl. No.:

5/651756

Inventors:

Herbert L. Rawlings - New Martinsville WV

Assignee:

Mobay Chemical Corporation - Pittsburgh PA

International Classification:

C08L 6900

US Classification:

260 37PC

Abstract:

High impact mineral filled polycarbonates are comprised of a polycarbonate resin of a novaculite mineral filler having an average particle size of less than 5 microns. The percentage of novaculite is based on the total weight of the polycarbonate resin and novaculite. The polycarbonate articles formed from the mineral filled blends exhibit excellent impact properties over typical fillers for polycarbonate resin. Impact properties of the polycarbonate can be further improved by the addition of a silane coupling agent to the polycarbonate novaculite blend.

US Patent:

43840671, May 17, 1983

Filed:

Nov 19, 1981

Appl. No.:

6/323015

Inventors:

Herbert L. Rawlings - New Martinsville WV
Gerard E. Reinert - McMurray PA

Assignee:

Mobay Chemical Corporation - Pittsburgh PA

International Classification:

C08L 6702
C08L 6900
C08L 2324

US Classification:

524493

Abstract:

A mineral-filled thermoplastic composition comprising polycarbonate, poly(alkylene) terephthalate and polyanhydride resin characterized in an improved impact is disclosed.

US Patent:

40440737, Aug 23, 1977

Filed:

May 23, 1975

Appl. No.:

5/580400

Inventors:

Arthur L. Baron - New Martinsville WV
Herbert L. Rawlings - New Martinsville WV

Assignee:

Mobay Chemical Corporation - Pittsburgh PA

International Classification:

C08L 6702

US Classification:

260860

Abstract:

A blend comprised of high molecular weight polybutylene terephthalate and up to about 20 wt. % of an aromatic polycarbonate resin wherein the mixture has a drop dart impact strength in excess of about 60 foot-pounds is prepared by intimately mixing the components, one of which is powdered. The polybutylene terephthalate has an intrinsic viscosity of at least about 0. 95. The blend will tolerate the addition of up to 20 wt. % of a conventional flame retardant package such as decabromodiphenyl oxide and antimony trioxide while maintaining the 60 foot-pound minimum drop dart impact strength. The blend can achieve impact strengths in excess of 90 foot-pounds even when it contains flame retardant additives if the polybutylene terephthalate is blended in powder form. The invention also concerns a method of blending a high molecular weight polybutylene terephthalate with an aromatic polycarbonate to produce a high impact strength resin which has the ability to incorporate other additives while maintaining a high impact strength. The method includes blending one of the polybutylene terephthalate or the polycarbonate in powdered form.