Patents Represented by Attorney, Agent or Law Firm Andrew M. Solomon
  • Patent number: 5721313
    Abstract: A composition comprising a water-in-oil polymer emulsion wherein the polymer is the reaction product of the following:(a) an ethylenically unsaturated carboxylate having between about 3 and about 6 carbon atoms;(b) an ethylenically unsaturated monomer which is nonionic in nature;(c) an ethylenically unsaturated monomer containing one or more sulfonate or sulfoalkyl groups;(d) an ethylenically unsaturated monomer having surface active properties; and(e) a crosslinking agent is provided. The composition has a multiple number of uses, such as in ink, pigment or dye thickening.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: February 24, 1998
    Assignee: Rhone-Poulenc Inc.
    Inventors: Dominic Wai-Kwing Yeung, Dipak Lad
  • Patent number: 5721291
    Abstract: The invention relates to a composition based on crosslinkable epoxy-functional organopolysiloxanes. This composition comprises:A. at least 10% by weight of a linear polyorganosiloxane A (POS) of average general formula (II): ##STR1## in which: R.sub.1 is CH.sub.3, R' is an alkylene containing 2 to 50 C, R is an alkyl having from 6 to 26 C, X is R.sub.1, H, --R'-epoxy or hydroxyl, x=40-150, t=3-9, z=0-5 and y=0,B. at least one second crosslinkable epoxy-functional POS (B), B being present in the proportion of at most 90% by weight and corresponding to: B(a) with x=160-1000, t=1-15, z=0-5 and y=0, B(b) with x=0-120, t=10-30, z=0-5 and y=0, or B(c) with x=0-200, t=0-5, z=0-5 and y=10-90,C. and at least one photoinitiator.This composition can be used in the manufacture of protectors for adhesive bodies ("release liners"), papers or plastics or of liner-free self-adhesive labels.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: February 24, 1998
    Assignee: Rhone-Poulenc Chimie
    Inventors: Eric Gaulle, Christian Priou, Andre Soldat
  • Patent number: 5718757
    Abstract: The invention relates to a phosphomagnesium cement obtained by mixing water and a binding phase based on at least one phosphorus compound, at least one magnesium compound and at least one inorganic compound, characterized in that the inorganic compound is introduced in the form:- either of particles (1) of size smaller than 0.1 .mu.m,- or of aggregates (2) of size smaller than 0.1 .mu.m,- or of agglomerates (3) capable of deagglomerating at least partially during the mixing of the said binding phase and of water, into particles of size smaller than 0.1 .mu.m or into aggregates of size smaller than 0.1 .mu.m.
    Type: Grant
    Filed: December 3, 1996
    Date of Patent: February 17, 1998
    Assignee: Rhone-Poulenc Chimie
    Inventors: Bruno Le Guillou, Giiies Orange
  • Patent number: 5716717
    Abstract: A wallcovering material comprising a substrate having a water remoistenable adhesive on at least one of its surfaces, said adhesive comprising a composition which is a mixture of:(1) an aqueous emulsion including an acidic polymer which is capable of swelling when in contact with an alkaline material; and(2) an alkaline material;wherein said composition has a viscosity of less than about 10000 cps at 25.degree. C. and wherein said composition provides adhesive properties is provided.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: February 10, 1998
    Assignee: Rhone-Poulenc Inc.
    Inventors: Dominic Wai-Kwing Yeung, Richard Edward Rice
  • Patent number: 5703137
    Abstract: The present invention relates to initiators for the polymerization and/or crosslinking, cationically and under photochemical and/or thermal activation and/or activation by a beam of electrons, of monomers and/or polymers containing organofunctional groups.The said initiators are of the type comprising an onium salt of an element from groups 15 to 17 of the Periodic Table (Chem & Eng News, Vol 63, N5, 26, of 4 Feb. 1985) and they are characterized in that they contain at least one polymerization and/or crosslinking accelerator chosen from .alpha.-hydroxylated carboxylic acid esters such as, for example, lactic acid esters. Another subject of the invention is compositions based on at least one cationically crosslinkable polyorganosiloxane and on at least one initiator.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: December 30, 1997
    Assignee: Rhone-Poulenc Chimie
    Inventors: Christian Priou, Stuart Kerr, III
  • Patent number: 5700507
    Abstract: A process for treating animals and/or seafood comprising the step of contacting the animal and/or seafood with a treatment solution containing trialkali metal orthophosphate at a temperature of between about 90.degree. F. and about 200.degree. F. for a time period effective to remove, reduce or retard bacterial contamination without significantly depreciating the organoleptic properties of the animal and/or seafood is provided.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: December 23, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventors: Fredric G. Bender, Charles Mostoller, Evelyn Marie Frankovich
  • Patent number: 5697444
    Abstract: A novel fracturing fluid composition comprising:(1) a carboxyalkyl derivatized polygalactomannan having a degree of substitution of between about 0.01 and about 3.0;(2) a zirconium salt crosslinking agent;(3) one or more thermal stabilizing agents;(4) one or more pH buffers; and(5) water;wherein said fluid is capable of maintaining at least 10 percent of its original cross-linked viscosity after three hours at a temperature greater to or equal to 250.degree. F. is provided.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: December 16, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventors: Ralph Moorhouse, Ian William Cottrell
  • Patent number: 5688889
    Abstract: Process for conditioning textile materials in order to enable them to have, especially, a pleasant handle and a very low or even non-existent yellowing, characterized in that the textile materials are brought into contact with a composition comprising a polyorgano-siloxane having, per mole, at least one unit of general formula: ##EQU1## in which: R can represent a C.sub.1 -C.sub.4 alkyl radical;X can represent a hydrolysable radical;Z represents a residue containing (a) sterically hindered piperidyl group(s) of formulae: ##STR1## in which R.sup.1 is a divalent hydrocarbon radical, R'.sup.1 is a trivalent hydrocarbon radical, U and U' represent --O--, --NH-- or --N(alkyl)-, R.sup.2 can represent a C.sub.1 -C.sub.3 alkyl radical and R.sup.3 is H or R.sup.2,a and b are chosen from 0, 1 and 2,the sum a+b being not greater than 2.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: November 18, 1997
    Assignee: Rhone-Poulenc Chimie
    Inventors: Edith Canivenc, Jose-Luis Roca-Ortega, Andrew Van Der Spuy
  • Patent number: 5679734
    Abstract: The present invention relates more specifically to silicone compositions which can be crosslinked into an adhesive gel by hydrosilylation at room temperature, as well as to the gels thus obtained. One of the objects of the invention is to produce, easily and rapidly, gels having viscoelastic qualities, low-temperature physical stability and adhesion properties.This objective is achieved by virtue of the compositions comprising:a polyorganosiloxane POS (I) of the SiVi type (Vi=vinyl);a POS (II) of the SiH type;an extender POS (III) of the .alpha.,.omega.-hydrogen, SiH type; and, optionally, a diluent POS (IV) of the polydimethylsiloxane type; where ##EQU1## Application: protection of electronic equipment (potting), adhesives, prostheses.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: October 21, 1997
    Assignee: Rhone-Poulenc Chimie
    Inventors: Pierre-Michel Peccoux, Christian Pusineri
  • Patent number: 5672646
    Abstract: The present invention relates to a stabilizing composition for a chlorine-containing polymer (PVC), characterized in that it comprises the unpurified crude product resulting from the reaction of an ester with a ketone in the presence of an alkaline agent, this crude product comprising at least 10 % by weight of .beta.-diketone and being in the form of a powder.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: September 30, 1997
    Assignee: Rhone-Poulenc Chimie
    Inventors: Michel Allas, Serge Chassaing, Michel Gay, Gilles Mur
  • Patent number: 5667836
    Abstract: A composition of matter comprising a monocalcium phosphate leavening acid having a neutralizing value of between about 44 and about 63 wherein the neutralizing value is the amount by weight of sodium bicarbonate needed to neutralize 100 parts by weight of said monocalcium phosphate leavening acid.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: September 16, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventor: Frank H. Y. Chung
  • Patent number: 5665850
    Abstract: Processes of preparing polymeric photoinitiators are disclosed. The polymers are prepared by either a hydrosilation reaction of a SiH containing siloxane or a ring opening reaction of an epoxy functional siloxane. The resulting polymeric photoinitiators are cationic polymers consisting of organometallic complex salts which are grafted onto a polyorganosiloxane backbone.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: September 9, 1997
    Assignee: Rhone-Poulenc Chimie
    Inventor: Christian Priou
  • Patent number: 5665466
    Abstract: Process for the surface treatment of a titanium dioxide pigment, characterized in that it comprises the following steps:an aqueous suspension of titanium dioxide pigments is formed,in a first step, a layer of alumina phosphate is precipitated on the surface of the pigment,in a second step, a layer of alumina is precipitated over the first layer of alumina phosphate,the pigment is recovered from the suspension;and titanium dioxide pigment, characterized in that it comprises a titanium dioxide core coated successively with a layer of alumina phosphate, then with a layer of alumina and then with a layer of magnesium oxide.
    Type: Grant
    Filed: November 8, 1995
    Date of Patent: September 9, 1997
    Assignee: Rhone-Poulenc Chimie
    Inventors: Anny Guez, Remy Lorang
  • Patent number: 5661192
    Abstract: In an organopolysiloxane composition giving rise to elastomer foam, including at least one polyacyloxyorganopolysiloxane obtained by functionalization, with a polyacyloxysilane, of at least one reactive oil which is a polyhydroxylated polysiloxane intended to react in the presence of water to form the elastomer with formation of acid of formula R'COOH, in which R' denotes a hydrocarbon radical free from aliphatic unsaturation and which has from 1 to 15 carbon atoms, a blowing agent and optionally water, the blowing agent is at least one acidic or neutral carbonate of an alkali or alkaline-earth metal, which, by reacting with the acid R'COOH, gives carbon dioxide and preferably water.Objects, especially seals, thus obtained and kit for static mixing.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: August 26, 1997
    Assignee: Rhone-Poulenc Chimie
    Inventor: Yves Giraud
  • Patent number: 5651861
    Abstract: A process for removing oil-based inks and/or waterborne inks under slightly acidic, neutral or alkaline conditions by using either a flotation technique and/or a washing technique by using a novel deinking agent having a quarternized nitrogen group is provided.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: July 29, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventors: Eric Heath Larson, Marie Odile Lafon
  • Patent number: 5646093
    Abstract: Polygalactomannans containing a hydrophilic substituent and a hydrophobic substituent are useful as oil shale inhibitor compositions in oil well drilling fluids.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: July 8, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventor: David Joseph Dino
  • Patent number: 5635231
    Abstract: A process for treating poultry, red meat or seafood comprising the step of contacting the poultry, red meat or seafood with:(1) a treatment solution comprising trialkali metal orthophosphate; and(2) steamfor a time period effective to remove, reduce or retard bacterial contamination without significantly depreciating the organoleptic properties of the animal and/or seafood is provided.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: June 3, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventors: Fredric G. Bender, Walter Frees
  • Patent number: 5632857
    Abstract: A process for removing water borne flexographic inks from paper stock comprising the steps of (a) forming a slurry by pulping paper containing water borne flexographic inks in an aqueous medium having a pH of greater than 8 which includes: (1) one or more basic agents; (2) one or more nonionic surfactants; (3) one or more anionic polyelectrolytes; and (4) an amount of paper different from that being processed which contains inorganic fillers, coatings or mixtures thereof; and (b) subjecting the slurry produced in step (a) to a flotation cell having an aqueous medium having a pH of greater than 8 which includes: (1) one or more basic agents; (2) one or more nonionic surfactants; and (3) one or more anionic polyelectrolytes is provided.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: May 27, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventor: Eric H. Larson
  • Patent number: 5633028
    Abstract: A xanthan gum composition is prepared that is useful as a thickener and suspension agent in food and pharmaceutical applications. Comprised of xanthan gum and small amount of a food grade emulsifier, the composition is both shelf stable, dust-free and fast hydrating thereby providing a product that is easily assimilated into its end product uses with fewer steps and costs of manufacture.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: May 27, 1997
    Assignee: Rhone-Poulenc Inc.
    Inventor: Philip Wong
  • Patent number: 5626968
    Abstract: A novel photoinitiator which includes an organometallic complex salt grafted onto a polyorganosiloxane skeleton is provided.
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: May 6, 1997
    Assignee: Rhone-Poulenc Chimie
    Inventor: Christian Priou