C08J2431/04

Damping thermoplastic olefin elastomers
11566122 · 2023-01-31 · ·

A thermoplastic elastomer compound includes polyolefin elastomer, high softening point tackifier, and, optionally, styrenic block copolymer. When styrenic block copolymer is present, the weight ratio of polyolefin elastomer to styrenic block copolymer is no less than about 1:1. The polyolefin elastomer has a POE Tan Delta Peak Temperature, the styrenic block copolymer has a SBC Tan Delta Peak Temperature, and the thermoplastic elastomer compound has a Compound Tan Delta Peak Temperature. The Compound Tan Delta Peak Temperature is greater than the POE Tan Delta Peak Temperature. When styrenic block copolymer is present, Compound Tan Delta Peak Temperature is also greater than the SBC Tan Delta Peak Temperature. The thermoplastic elastomer compound exhibits useful damping properties at or above room temperature and can be formed into plastic articles, including foamed plastic articles and/or crosslinked plastic articles, which can be useful for a variety of damping applications.

Microporous sheet product and methods for making and using the same
11535720 · 2022-12-27 ·

Microporous sheet product and methods of making and using the same. In one embodiment, the microporous sheet product is made by a process that includes melt-extruding a sheet material using an extrusion mixture that includes a thermoplastic polymer, a superabsorbent polymer, and a compatibilizing agent. After extrusion, the compatibilizing agent may be removed from the sheet material. When the sheet product is imbibed with a polar or ion-containing liquid, the superabsorbent polymer swells, causing a reduction in the pore size of the sheet product. The exposure also causes some of the superabsorbent polymer to migrate to the exterior of the microporous sheet product. The microporous sheet product may be used, for example, as a battery separator, as a food packaging material, as a diffusion barrier in the ultrafiltration of colloidal matter, and in disposable garments.

Crosslinkable and foamable composition, foam obtained by the same, composition for foaming and use thereof

A crosslinkable and foamable composition is provided, which comprises a hydrogenated styrenic diblock copolymer, a free radical initiator and a foaming agent, wherein the hydrogenated styrenic diblock copolymer comprises: a first block comprising a conjugated diene monomer unit; and a second block comprising a styrene unit, wherein the hydrogenated styrenic diblock copolymer comprises 10 to 60 wt % of the styrene unit, 50 mol % or more of the conjugated diene monomer unit is hydrogenated, and the hydrogenated styrenic diblock copolymer has a weight average molecular weight of 30000 to 200000. In addition, a foam obtained by crosslinking and foaming the aforesaid crosslinkable and foamable composition is also provided.

Water-dispersible and biodegradable films for the packaging of liquids and moisture-sensitive materials

The presently disclosed subject matter is generally directed to a packaging film constructed from water-dispersible and/or biodegradable compositions. Particularly, the disclosed film comprises a first layer constructed from one or more water-dispersible materials, such as water-dispersible paper. The film further comprises a second layer constructed from one or more biodegradable materials, such as poly(hydroxyalkanoate). The first and second layers can be constructed to form a packaging material used to enclose a wide variety of products, including liquids and moisture-sensitive solids. Advantageously, the disclosed film (and associated packaging materials) are dissolvable in water and/or biodegrade when exposed to landfill conditions and/or water.

Multilayer composite rubber-plastic foam insulation material and preparation method thereof

The present invention discloses a multilayer composite rubber-plastic foam insulation material and a preparation method thereof. The composite rubber-plastic foam insulation material includes a two-layer structure; the two-layer structure includes an insulation layer and a first functional layer; the insulation layer and the first functional layer are both made of a rubber-plastic foam material; the first functional layer and the insulation layer are integrally molded by blending extrusion and vulcanization foaming, and the first functional layer and the insulation layer form an integral structure. The multilayer composite rubber-plastic foam insulation material provided by the present invention adopts a vulcanization foaming integral molding process, and not only ensures the thermal insulation property of the insulation layer, but also gives the functional layer corresponding functions by selecting different functional polymers, thereby satisfying a variety of personalized needs in engineering applications.

Primerless paint composition, methods of manufacture thereof and articles comprising the same
11485831 · 2022-11-01 · ·

Disclosed herein is a primerless paint composition comprising a carboxylated chlorinated polyolefin elastomer; one or more of a polyacrylic binder, a polyvinylchloride binder and a vinyl aromatic block copolymer binder; a pigment; and a liquid carrier. Disclosed herein too is a method comprising blending a primerless paint composition comprising a carboxylated chlorinated polyolefin elastomer; one or more of a polyacrylic binder, polyvinylchloride binder and a vinyl aromatic block copolymer binder; a pigment; and a liquid carrier; and disposing the primerless paint composition on a polyolefin elastomer substrate that does not have a primer disposed on it prior to the disposing of the primerless paint composition.

POLYMER FILM AND USES OF THE SAME
20230124116 · 2023-04-20 ·

A polymer film and a laminated glass manufactured using the polymer film are provided. The polymer film has a first surface and a second surface, wherein the first surface has a standard deviation of a void volume (Vv) value at a material ratio of 10% ranging from 0.5 μm.sup.3/μm.sup.2 to 2.5 μm.sup.3/μm.sup.2, and wherein the material ratio and void volume are defined in accordance with ISO 25178-2:2012.

WATER- AND OIL-PROOFING COMPOSITION, METHOD FOR ITS PRODUCTION, ARTICLE AND WATER- AND OIL-PROOF PAPER
20230062674 · 2023-03-02 · ·

A water- and oil-proofing composition which can provide an article with high utility oil resistance is provided. A water- and oil-proofing composition comprising a fluorinated polymer comprising units based on the following monomer (a) and units based on the following monomer (b), a fatty acid ester of polyglycerin and an aqueous medium: Monomer (a): a compound represented by CH.sub.2═CH—R.sup.f (wherein R.sup.f is a C.sub.1-8 perfluoroalkyl group). Monomer (b): a monomer copolymerizable with the monomer (a).

Filled polymeric resin materials and methods of making
11685831 · 2023-06-27 · ·

The present disclosure provides for articles formed of a filled polymeric resin material. More specifically, the present disclosure relates to polymeric resin materials that include a filler that includes of a mixture of cured rubber granules, foam granules, and/or textile fibers. The filler can be suspended in and/or encapsulated by the polymeric resin material. The polymeric resin material, the filler, or both can include waste or scrap material from manufacturing or from ground post-consumer waste.

THIN PLATE MOLDING MATERIAL AND MOLDED ARTICLE
20230183433 · 2023-06-15 ·

A thin plate molding material includes a resin composition containing a resin component and a filling material, and a reinforced fiber with a predetermined fiber length. The content ratio of the reinforced fiber is a predetermined ratio. The mixing ratio of the resin component is a predetermined ratio.