Ruth Christine Gallagher

age ~77

from Hot Springs, NC

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Reinforcement Of Vinyl Chloride Resins With Suspension Emulsion Interpolymers
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US Patent:

39694313, Jul 13, 1976
Filed:

Nov 13, 1973
Appl. No.:

5/415464
Inventors:

Ruth E. Gallagher - Dobbs Ferry NY
Assignee:

Stauffer Chemical Company - Westport CT
International Classification:

C08L 5106
C08L 2706
C08L 3102
US Classification:

260876R
Abstract:

Rigid vinyl chloride polymers are reinforced by admixture with a plurality of elastomer-containing interpolymer particles which are prepared by the suspension polymerization of vinyl chloride in the presence of an aqueous emulsion of particles comprising a crosslinked butyl acrylate/2-ethylhexyl acrylate acrylic elastomer having a Tg of less than about 25. degree. C. The resulting reinforced vinyl chloride polymers display excellent physical properties.

Acrylate-Styrene-Acrylonitrile Composition And Method Of Making The Same
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US Patent:

39446310, Mar 16, 1976
Filed:

Feb 1, 1974
Appl. No.:

5/438918
Inventors:

Arthur J. Yu - Stamford CT
Ruth E. Gallagher - Dobbs Ferry NY
Assignee:

Stauffer Chemical Company - Westport CT
International Classification:

C08L 2512
C08L 2906
C08L 3102
C08L 3320
US Classification:

260881
Abstract:

An impact-resistant and weatherable thermoplastic composition comprising from about 10 to about 50 weight percent of a crosslinked acrylate elastomer having a Tg of less than 25. degree. C. , from about 5 to about 35 weight percent of a crosslinked styrene-acrylonitrile copolymer and from about 15 to about 85 weight percent of a non-crosslinked or linear styrene-acrylonitrile copolymer. The composition is made by a three-step sequence comprising emulsion polymerizing of an alkyl acrylate containing at least one crosslinking monomer, emulsion polymerizing a monomer mixture of styrene, acrylonitrile and at least one crosslinking monomer in the presence of the crosslinked acrylate elastomer formed in the previous step, or a reverse sequence of the prior two emulsion polymerization procedures, and, finally, emulsion or suspension polymerizing of styrene, acrylonitrile in the presence of the previously formed product.

Low Fusion Copolymer Comprising Vinyl Chloride, Vinyl Acetate, And Bis(Hydrocarbyl)Vinylphosphonate
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US Patent:

40976637, Jun 27, 1978
Filed:

Jan 29, 1976
Appl. No.:

5/653313
Inventors:

Ruth E. Gallagher - Dobbs Ferry NY
Jagadish C. Goswami - New City NY
Assignee:

Stauffer Chemical Company - Westport CT
International Classification:

C08J 900
C08F 3002
C08F 432
US Classification:

526278
Abstract:

An emulsion copolymer resin which contains from about 75% to about 90% by weight vinyl chloride, from about 5% to about 15% vinyl acetate and from about 5% to about 15% of a bis(hydrocarbyl)vinylphosphonate, has a fusion temperature of from about 200. degree. F. to about 300. degree. F. and has utility as a low fusion resin in the formation of cellular polyvinyl chloride products.

Internally Plasticized Vinyl Chloride Copolymer Composition
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US Patent:

42107393, Jul 1, 1980
Filed:

Jul 21, 1978
Appl. No.:

5/926773
Inventors:

Ruth E. Gallagher - Dobbs Ferry NY
Jagadish C. Goswami - New City NY
Paul Kraft - Spring Valley NY
Arthur J. Yu - Stamford CT
Assignee:

Stauffer Chemical Company - Westport CT
International Classification:

C08F21406
C08F22018
US Classification:

526325
Abstract:

An internally plasticized vinyl chloride copolymer composition having good low temperature flexibility and tensile properties is disclosed. It consists essentially of from about 45% to about 80%, by weight, vinyl chloride, from about 15% to about 54%, by weight, of a C. sub. 2 -C. sub. 10 alkyl acrylate, and from about 1% to about 15%, by weight, of one or more C. sub. 8 -C. sub. 22 dialkyl maleate and/or fumarate. The copolymer is formed using conventional suspension, emulsion, bulk and solution polymerization procedures.

Rigid Plastic Admixed With Crosslinked Acrylate/Vinyl Chloride Interpolymer
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US Patent:

39883930, Oct 26, 1976
Filed:

Jul 25, 1975
Appl. No.:

5/599262
Inventors:

Ruth E. Gallagher - Dobbs Ferry NY
Assignee:

Stauffer Chemical Company - Westport CT
International Classification:

C08L 5100
C08L 5300
US Classification:

260876R
Abstract:

Certain rigid plastics are reinforced by admixture with a plurality of rubber-containing interpolymer particles which are prepared by the suspension polymerization of vinyl chloride in the presence of an aqueous emulsion of particles comprising a crosslinked acrylic rubber having a Tg of less than about 25. degree. C. The resulting reinforced plastics display excellent physical properties.

Process For Making Reinforced Magnesium Phosphate Fast-Setting Cements
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US Patent:

50026100, Mar 26, 1991
Filed:

Dec 12, 1985
Appl. No.:

6/808397
Inventors:

Fawzy G. Sherif - Stony Point NY
Ruth E. Gallagher - Dobbs Ferry NY
Assignee:

Rhone-Poulenc Basic Chemicals Co. - Shelton CT
International Classification:

C04B 904
C04B 1438
US Classification:

106691
Abstract:

Improved magnesium phosphate fast-setting cements comprising an effective amount of fiber to increase the impact strength of the cement. These fibers include glass, metal, organic and mixtures thereof.