C08L2201/10

Methacrylic resin composition
09796844 · 2017-10-24 · ·

A methacrylic resin composition containing 10 to 99 parts by mass of a methacrylic resin (A) containing 80% by mass or more of a methyl methacrylate unit, and 90 to 1 part by mass of a block copolymer (B) containing 10 to 60% by mass of a methacrylic acid ester polymer block (b1) and 90 to 40% by mass of an acrylic acid ester polymer block (b2), where the total of the methacrylic resin (A) and the block copolymer (B) is 100 parts by mass, where a weight-average molecular weight Mw.sub.(A) of the methacrylic resin (A), a maximum weight-average molecular weight Mw.sub.(b1) of the methacrylic acid ester polymer block (b1) and a maximum weight-average molecular weight Mw.sub.(b2) of the acrylic acid ester polymer block (b2) satisfy (1): 0.5≦Mw.sub.(A)/Mw.sub.(b1)≦2.5 and (2): 40000≦Mw.sub.(b2)≦120000.

ACRYLIC BEADS FOR ENHANCING THERMICITY OF GREENHOUSE FILMS

This invention relates to a polymeric composition suitable for greenhouse film applications, and greenhouse films made therefrom. The polymeric composition suitable for greenhouse film applications according to the present invention comprises a) 50 to 99 percent by weight of a continuous polymeric phase comprising a polymer selected from the group consisting of a polyolefin, a polyolefin copolymer, an ethylene propylene copolymer with an acrylic ester, an ethylene or propylene copolymer with a vinyl acetate, and combinations thereof; and b) 1 to 50 percent by weight of polymeric particles having an average particle diameter of 0.5 to 10 μm; a refractive index from 1.474 to 1.545; an average particle hardness from 1.2367E+10 N/m.sup.2 to 8.4617E+10 N/m.sup.2; and at least 60% polymerized acrylic monomer units.

COMPOSITONS HAVING ADHESION PROPERTIES
20170298254 · 2017-10-19 ·

Compositions of matter that have adhesion properties. The presence of a large number of silanols on the molecules described herein creates a solubility or disperseability of these molecules in aqueous solutions that is not obtainable from random hydrolysis of the precursor silanes.

Thermoplastic polyurethane composition

A thermoplastic polyurethane composition includes a thermoplastic polyurethane (TPU) and a polyoxymethylene. The thermoplastic polyurethane composition comprises 50 to 95 parts by weight of the TPU and 5 to 50 parts by weight of the polyoxymethylene, per 100 parts by weight of the thermoplastic polyurethane composition. The thermoplastic polyurethane composition has an Izod notched impact of greater than 0.5 fflb/in at −40° C. as determined by ASTM D256 10, Method A, and an elastic modulus of greater than 700 psi at 130° C. as determined by ASTM D412. A fluid transfer tube is formed from the thermoplastic polyurethane composition.

Weekly and monthly disposable water gradient contact lenses

The invention is related to contact lenses that not only comprise the much desired water gradient structural configurations, but also have a minimized uptakes of polycationic antimicrobials and a long-lasting surface hydrophilicity and wettability even after going through a 30-days lens care regime. Because of the water gradient structural configuration and a relatively-thick, extremely-soft and water-rich hydrogel surface layer, a contact lens of the invention can provide superior wearing comfort. Further, a contact lens of the invention is compatible with multipurpose lens care solutions present in the market and can endure the harsh lens care handling conditions (e.g., digital rubbings, accidental inversion of contact lenses, etc.) encountered in a daily lens care regime. As such, they are suitable to be used as weekly- or monthly-disposable water gradient contact lenses.

Resin composition, formed article, and film

A resin composition which has oxygen-barrier properties less apt to depend on humidity and has high transparency; and a formed article and a film which include the resin composition are provided. The resin composition includes from 10 to 90 parts by mass of a polyamide resin (A) and from 90 to 10 parts by mass of a polyamide resin (B), wherein the polyamide resin (A) includes constituent units derived from a diamine and constituent units derived from a dicarboxylic acid, with 70 mol % or more of the constituent units derived from a diamine being derived from xylylenediamine and 90 mol % or more of the constituent units derived from a dicarboxylic acid being derived from adipic acid; the polyamide resin (B) includes constituent units derived from a diamine and constituent units derived from a dicarboxylic acid, 70 mol % or more of the constituent units derived from a diamine being derived from xylylenediamine, from 30 to 65 mol % of the constituent units derived from a dicarboxylic acid being derived from an α,ω-linear chain aliphatic dicarboxylic acid having from 4 to 20 carbons, and from 70 to 35 mol % of the constituent units derived from a dicarboxylic acid being derived from isophthalic acid.

Thermoplastic elastomer compounds exhibiting improved stain resistance
11667785 · 2023-06-06 · ·

A thermoplastic elastomer compound includes acrylic block copolymer and functionalized polysiloxane. Polymeric articles formed from the thermoplastic elastomer compound can have improved stain resistance, while also achieving other desirable properties such as low tackiness (i.e., low coefficient of friction) and good clarity (i.e., low haze).

Polymer, composition, and polysiloxane-polyimide material thereof

A polymer, a composition, and a polysiloxane-polyimide material thereof are provided. The polymer includes a first repeat unit and a second repeat unit. The first repeat unit has a structure represented by Formula (I) and the second repeat unit has a structure represented by Formula (II) ##STR00001##
wherein A.sup.1 and A.sup.3 are independently tetravalent moiety; A.sup.2 is a divalent moiety; n≥1; m≥1; R.sup.1 is independently hydrogen, C.sub.1-8 alkyl, C.sub.1-8 fluoroalkyl, C.sub.1-8 alkoxy, or C.sub.6-12 aryl; and R.sup.2 is independently hydrogen, C.sub.1-8 alkyl, C.sub.1-8 fluoroalkyl, C.sub.1-8 alkoxy, C.sub.6-12 aryl, or a reactive functional group.

Conductive material and substrate

The present invention provides a conductive material including: (A) a π-conjugated polymer, (B) a dopant polymer which contains one or more repeating units selected from “a1” to “a4” respectively represented by the following general formula (1) and has a weight-average molecular weight in the range of 1,000 to 500,000, and (C) one or more metal oxide nanoparticles whose metal oxide is selected from indium-tin oxides, tin oxides, antimony-tin oxides, antimony-zinc oxides, antimony oxides, and molybdenum oxides having a particle diameter of 1 to 200 nm. There can be provided a conductive material that has excellent film-formability and also can form a conductive film having high transparency and conductivity, superior flexibility and flatness when the film is formed from the material. ##STR00001##

POLYPROPYLENE COMPOSITION
20220049078 · 2022-02-17 ·

New polypropylene composition, which combines low sealing initiation temperature (SIT), high hot-tack and good optical properties, like low haze, the use of such polypropylene composition and articles made therefrom.