C08J2483/12

ANTI-GLARE FILM AND POLARIZER WITH THE SAME
20210388210 · 2021-12-16 ·

An anti-glare film is disclosed. The anti-glare film comprises a transparent substrate and an anti-glare layer comprising an acrylic binder resin, a polyether-modified siloxane and a plurality of silica nanoparticles, wherein the silica nanoparticles are flocculated into a micro-floccule with an average secondary particle diameter of 1,500 nm to 3,100 nm. The present anti-glare film can provide a reliable anti-glare property with low haze and fine surface.

Flame-retarded rigid polyurethane foams

A process for producing rigid PUR/PIR foams comprising A1 an isocyanate-reactive component, A2 a flame retardant, A3 a blowing agent, A4 a catalyst, A5 optionally auxiliaries and additives, and B an organic polyisocyanate component. Component A1 comprises a triurethane triol A1.1 and a compound A1.2 selected from the group consisting of polyether polyol, polyester polyol, polyether carbonate polyol, and polyether ester polyol. Also disclosed is a rigid PUR/PIR foam, an insulating material, a composite element, and a mixture.

Production of PU foams

Process for producing PU foams by reacting at least one polyol component with at least one isocyanate component in the presence of one or more catalysts that catalyse the isocyanate-polyol and/or isocyanate-water reactions and/or isocyanate trimerization, and optionally one or more chemical or physical blowing agents, with use of SiOC-bonded polyether siloxanes having branching in the siloxane moiety, prepared from branched siloxanes bearing acetoxy groups, wherein a sufficient amount of the SiOC-bonded polyether siloxane having branching in the siloxane moiety is added that the proportion by mass of this polyether siloxane (e) based on the finished PU foam is from 0.0001% to 10% by weight.

Polyurethane product with sulfur-containing polyester polyol

A reaction system for forming a step-growth polymerized sulfur-containing polyester polyol includes at least one sulfur-containing component selected from the group of a sulfur-containing polyol or a sulfur-containing polycarboxylic acid, an amount of the at least one sulfur-containing component being from 1 wt % to 60 wt %, at least one aromatic component selected from the group of an aromatic multi-functional ester, an aromatic multi-functional carboxylic acid, and an aromatic anhydride, an amount of the at least one aromatic component being from 1 wt % to 60 wt %, at least one simple polyol that excludes sulfur and is different from the sulfur containing polyol, an amount of the at least one simple polyol being from 0 wt % to 60 wt %, and at least one polymerization catalyst. The reaction system for forming the sulfur-containing polyester polyol has a sulfur content that is from 2 wt % to 20 wt %.

A RIGID POLYURETHANE FOAM FORMULATION AND FOAM MADE THEREFROM

A rigid polyurethane foam formulation comprising a polyol composition comprising, by weight based on the weight of the polyol composition, more than 70% of at least one polyester polyol having an average hydroxyl number of from 150 to less than 300 mg KOH/g and an average functionality of at least 2; a blowing agent comprising water and an auxiliary blowing agent; a silicone copolymer surfactant; from 1% to 5% by weight based on the weight of the polyol composition, of a cyclic siloxane having a surface tension less than 21 dynes/cm at 25° C., wherein the weight ratio of the cyclic siloxane to the silicone copolymer surfactant is from 0.6 to less than 2.27; a catalyst, and optionally a flame retardant; and a polyisocyanate; such that the isocyanate index is in the range of from 180 to 500; a rigid polyurethane foam formed from the foam formulation; and a method of forming a rigid polyurethane foam.

FOOD CONTACT SAFE, GERM REPELLENT MATERIAL

A food contact safe, germ repellent plastic selected from modified thermoplastic, vulcanized silicone rubber or modified base plastic. The plastic includes an anti-biofouling agent at approximately 1 to 20 wt. % to the total weight of the plastic; and one or more components of fillers, carrier agent, mold releasing agent, curing agent, and/or oil, at approximately 0.1 to 2 wt. % for each or more of the components to the total weight of the plastic, where the anti-biofouling agent forming a hydration layer on the plastic imparts germ repellency against bacteria including Escherichia coli and Staphylococcus aureus while optical and mechanical properties including transmittance, tensile strength, impact strength, hardness, and/or heat deflection temperature of the plastic is/are changed by less than 10% after being associated with the anti-biofouling agent and the one or more of the components other than the anti-biofouling agent.

RESIN COMPOSITION FOR TEMPORARY FIXATION, SUBSTRATE-CONVEYING SUPPORT TAPE, AND ELECTRONIC EQUIPMENT DEVICE MANUFACTURING METHOD
20220289920 · 2022-09-15 ·

A method for producing an electronic device includes a first step of pasting a support to an organic substrate having a thickness of 1000 μm or less, with a temporary fixing material interposed therebetween, to obtain a laminated body; a second step of heating the temporary fixing material of the laminated body; a third step of mounting a semiconductor chip on the organic substrate of the laminated body that has been subjected to the second step; a fourth step of sealing the semiconductor chip mounted on the organic substrate with a sealing material; and a fifth step of peeling the support and the temporary fixing material from the organic substrate of the laminated body that has been subjected to the fourth step.

Bacteria Repellant Polymer Composites

Provided herein is a masterbatch including a grafted silicone polyether and a porous inorganic nanoparticle, bacteria repellant polymer composites including the same, and methods of preparation thereof.

POLYURETHANE PRODUCT WITH SULFUR-CONTAINING POLYESTER POLYOL

A reaction system for forming a step-growth polymerized sulfur-containing polyester polyol includes at least one sulfur-containing component selected from the group of a sulfur-containing polyol or a sulfur-containing polycarboxylic acid, an amount of the at least one sulfur-containing component being from 1 wt % to 60 wt %, at least one aromatic component selected from the group of an aromatic multi-functional ester, an aromatic multi-functional carboxylic acid, and an aromatic anhydride, an amount of the at least one aromatic component being from 1 wt % to 60 wt %, at least one simple polyol that excludes sulfur and is different from the sulfur containing polyol, an amount of the at least one simple polyol being from 0 wt % to 60 wt %, and at least one polymerization catalyst. The reaction system for forming the sulfur-containing polyester polyol has a sulfur content that is from 2 wt % to 20 wt %.

COMPOSITION WITH ISOCYANATE COMPATIBLE SILICONE STABILIZER
20210277198 · 2021-09-09 ·

An isocyanate-based foam composition includes a polyol, an isocyanate-containing component and a silicone polyether Got stabilizer having the following structure: (CH.sub.3).sub.3Si—[OSi(CH.sub.3).sub.2].sub.x—[OSi(CH.sub.3)(Y)].sub.y—OSi(CH.sub.3).sub.3 where x is 0 to 15, y is 1 to 2, and Y is (CH.sub.2).sub.nO—(CH.sub.2CH.sub.2O).sub.e—(CH.sub.2CH(R))O).sub.p—Z where n is 1 to 10, e is 5 to 15, p is zero to 10, R is —CH.sub.3 or CH.sub.2CH.sub.3 and Z is selected from a group consisting of hydrogen, alkyl, aryl, acyl, and alkyl succinic anhydride groups wherein 20 mole-percent or less of the Z N groups are hydrogen, wherein the ratio of e/x is greater than 0.5 and the number average molecular weight of the silicone polyether stabilizer is less than 4300 grams per mole as determined by nuclear magnetic resonance spectroscopy, and wherein the [OSi(CH.sub.3).sub.2] and [OSi(CH.sub.3)(Y)] units can be block or random copolymerized