38 patents
Utility
Multilayer polymeric structure
21 Mar 23
The invention relates to multilayer polymer structures having at least three layers.
Charles C. Crabb, Thomas H. Richards, Steven B. Lacock, Florence Mehlmann
Filed: 3 Apr 13
Utility
Light diffuser for horticultural lighting
28 Feb 23
The invention relates to a light-diffusing material, having a high transmission of UVA light, useful for horticultural lighting.
Brian Cromer
Filed: 17 Oct 19
Utility
Styrenic polymers having reduced trimer content
21 Feb 23
Disclosed are styrenic polymers made by a mass or solution process, where the amount of trimer consisting of styrene and/or acrylonitrile is less than about 0.50 weight percent.
Gilbert Bouquet, Fredericus Slijkerman
Filed: 10 Jun 20
Utility
Impact Modified Copolymers of (Meth)acrylate Esters And/or Free Radically Polymerizable Monomers Containing Nucleophilic Groups
2 Feb 23
A composition comprising: a) one or more copolymers of i) one or more of one or more vinyl or vinylidene aromaticmonomers and/or (meth)acrylates; with ii) one or more unsaturated compounds containing one or more nucleophilic groups wherein the copolymer contains on average about 0.01 to about 5.0 percent by weight of nucleophilic groups based on the weight of the copolymer; b) one or more thermoplastic elastomer based polymers containing one or more nucleophilic groups; and c) one or more polymers having electrophilic groups; wherein the electrophilic groups have reacted with the nucleophilic groups and at least a portion of the one or more copolymers containing nucleophilic groups are bonded to at least a portion of the one or more thermoplastic elastomers containing one or more nucleophilic groups by at least a portion of the one or more polymers having electrophilic groups.
Abidin Balan
Filed: 6 Oct 20
Utility
In-situ polymer blend for a tire
17 Jan 23
The present invention relates to a method for the preparation of a synthetic rubber blend, wherein the blend comprises a high molecular weight polydiene (A) and a low molecular weight polydiene (B).
Evemarie Hamann, Dominique Thielemann, Sven K. H. Thiele
Filed: 16 Jul 18
Utility
Acid-functionalized Copolymers of Methyl Methacrylate and Acrylic Resin Compositions Based Thereon
29 Dec 22
Acid-functionalized copolymers of methyl methacrylate having relatively high glass transition temperatures and molecular weights may be employed to manufacture articles having high light transmission values, low haze, high heat resistance, and high environmental stability, which are useful as optical protection films, zero-zero optical retardation films, and compensation films as well as lighting pipes and optical imaging lenses.
Jiaxin Jason Ge, Noah E. Macy, Florence Mehlmann, Estelle Meurice Pierrat
Filed: 26 Aug 22
Utility
Matte polycarbonate compositions, articles and method to make them
27 Dec 22
A polycarbonate article is described that is formed from a thermoplastic composition comprised of a polycarbonate or polycarbonate copolymer; and at least 1% by weight of a polysilsesquioxane (PSQ) solid particles that have a decomposition temperature of at least 350° C. and an acicular filler, which desirably has an aspect ratio of 2 to 50.
Mark Vreys
Filed: 17 Sep 20
Utility
Multilayer Pultruded Structure Having a Chemical Resistant and Weatherable Top Layer
24 Nov 22
The invention relates to a multilayered pultruded structures having a weatherable cap layer over a pultruded substrate.
Jing-Han Wang, Mary Katherine Calvin
Filed: 28 Oct 20
Utility
Matte Polycarbonate Compositions, Articles and Method to Make Them
20 Oct 22
A polycarbonate article is described that is formed from a thermoplastic composition comprised of a polycarbonate or polycarbonate copolymer; and at least 1% by weight of a polysilsesquioxane (PSQ) solid particles that have a decomposition temperature of at least 350° C. and an acicular filler, which desirably has an aspect ratio of 2 to 50.
Mark Vreys
Filed: 17 Sep 20
Utility
Stabilized Compositions of Polycarbonates and Vinylidene Substituted Aromatic Compounds
25 Aug 22
A composition comprising: one or more polycarbonates; one or more vinylidene aromatic substituted polymers; and a buffer system that controls the pH in water at 25° C. at a value of about 6.0 to about 8.0.
Claude T.E. Van Nuffel, Gilbert Bouquet, Maurice Laurijs
Filed: 21 Aug 20
Utility
Polymerizable Compositions and Copolymers of Cyclic (Meth)acrylate Esters with Alkyl (Methacrylates) And/or Free Radically Polymerizable Monomers
28 Jul 22
Disclosed are compositions comprising a) one or more cyclic (meth)acrylate esters; b) one or more alkyl (meth)acrylates; and c) one or more of i to iv; i) the one or more alkyl (meth)acrylates have two or more carbons in the alkyl group; ii) the one or more alkyl (meth)acrylates contain one or more alkyl methacrylates and one or more C2-8 alkyl acrylates; iii) one or more unsaturated compounds containing nucleophilic groups or electrophilic groups; iv) one or more impact modifiers, colorants, mold release agents, flow modifiers, UV absorbers, light stabilizers, fillers, fibers, anti-oxidants, and heat stabilizers.
Abidin Balan, Gilbert Bouquet, Claude T.E. Van Nuffel, Yao-Chu (also known as Luke) Chung, Pascal Lakeman
Filed: 6 Jul 20
Utility
Method of preparation of a composition comprising a copolymer of methyl methacrylate and methacrylic acid
14 Jun 22
The present invention relates to a polymeric composition comprising a polymer comprising monomers of methyl methacrylate and methacrylic acid.
Sylvain Bourrigaud, Pierre Gerard, Daniel Callin, Gilles Meunier, Sylvain C. Lamarre, Sylvain D. Queruel
Filed: 9 Dec 16
Utility
Impact Resistant Hydrophobic High Heat Optical Acrylic Copolymers
9 Jun 22
The invention relates to impact resistant acrylic copolymers and terpolymers incorporating high Tg, hydrophobic (meth)acrylates and derivatives that have high thermal stability and excellent impact resistance.
Jiaxin J. Ge, Sri R. Seshadri
Filed: 2 Apr 20
Utility
Chromatographic separation of ammonium sulfate and 2-hydroxy-2-methylpropionic acid
31 May 22
Thibault Lesaffre, Marjory Edon, Laurine Redelsperger, Aymeric Duplessix
Filed: 7 Mar 19
Utility
Highly Efficient Impact Modifier and Polymeric Compositions
26 May 22
The invention relates to the composition of core-shell impact modifiers, in particular those with a high Tg core, a low Tg inner shell and a high Tg outer shell, synthesized in such a way to have a unique concentric morphology and/or a combination of high rubber loading and low particle size and/or require only a low surfactant level.
Noah E. Macy, Jing-Han Wang, Robert J. Barsotti
Filed: 24 Mar 20
Utility
Vinylidene substituted aromatic monomer and cyclic (meth)acrylate ester polymers
3 May 22
Compositions comprising at least one copolymers comprising: a) from 20 to 90 percent by weight of one or more vinylidene substituted aromatic compounds; b) from 10 to 80 percent by weight of one or more cyclic (meth)acrylate esters; c) from 0 to 40 percent by weight of one or more unsaturated nitriles; and, d) from 0 to 60 percent by weight of an alkyl (meth)acrylate; wherein based on the weight of the copolymer and the copolymer has a weight average molecular weight of 120,000 g/Mole or greater and a glass transition temperature of 100° C. or greater.
Abidin Balan, Gilbert Bouquet, Pascal E.R.E.J. Lakeman
Filed: 4 Oct 19
Utility
Ionomers of Copolymers of Vinylidene Aromatic Monomer and Unsaturated Compounds with Acid Groups
24 Feb 22
Disclosed are ionomers of co-polymers of vinylidene substituted aromatic monomers and unsaturated compounds containing acid groups crosslinked by the residue of one or more metal salts and/or metal oxides of a metal having a valence of 2 or greater.
Abidin Balan, Gilbert Bouquet, Claude T.E. Van Nuffel
Filed: 3 Dec 19
Utility
Influence of Vinylidene Substituted Aromatic Monomers on Nitrile Migration
24 Feb 22
Disclosed are nitrile-vinylidene substituted aromatic polymers which include less than about 250 ppm of vinylidene substituted aromatic monomer.
Chin Ming Lam, Po Lung Wong, Claude T.E. Van Nuffel
Filed: 9 Jan 20
Utility
Extremely Low Odor Styrenic Polymer Composition
10 Feb 22
Disclosed are vinylidene substituted aromatic polymers which include a zinc salt.
Yao-Chu CHUNG
Filed: 12 Jul 19
Utility
Foams and Method of Forming Foams of Ionomers of Copolymers of Vinylidene Aromatic Monomer and Unsaturated Compounds with Acid Groups
13 Jan 22
A foaming composition useful to make an extruded foam is comprised of comprising a plurality of chains of a copolymer of one or more vinylidene aromatic monomers and one or more unsaturated acids, the copolymer having about 0.01 to about 15.0 percent by weight of the one or more unsaturated acids wherein the acid groups are pendant from the copolymer a metal salt, metal oxide or combination thereof, the metal having a valence of at least 2; and one or more blowing agents.
Claude T.E. Van Nuffel, Abidin Balan, Luc Bosiers
Filed: 3 Dec 19