Abstract:
An object of the present invention is to provide a urethane adhesive for solar battery back sheets, which has satisfactory initial adhesion to a film in the production of a solar battery back sheet, satisfactory initial adhesive property after curing and high adhesive property at high temperature, and also has a sufficient hydrolysis resistance over the long term and is excellent in overall balance; a solar battery back sheet which is obtainable by using the adhesive; and a solar battery module. Disclosed is an adhesive for solar battery back sheets, including a urethane resin obtainable by the reaction of an acrylic polyol with an isocyanate compound, wherein the acrylic polyol is obtainable by polymerizing polymerizable monomers, the polymerizable monomers include a monomer having a hydroxyl group and other monomers, the monomer having a hydroxyl group includes a hydroxyalkyl (meth)acrylate, and the other monomers include acrylonitrile and (meth)acrylic ester(s).
Abstract:
An object of the present invention is to provide an adhesive for laminated sheets, which is excellent in adhesive strength to a film after curing and long-term hydrolysis resistance at high temperature and high humidity when a laminated sheet is produced, and is also excellent in adhesive property at low temperature. Disclosed is an adhesive for laminated sheets, which comprises a urethane resin obtainable by mixing an acrylic polyol with an isocyanate compound, and also has a chemical structure derived from a diene polymer, wherein the diene polymer has a glass transition temperature of -40°C or lower. The adhesive for laminated sheets is excellent in adhesive strength to a film after curing and long-term hydrolysis resistance at high temperature and high humidity when a laminated sheet is produced, and is also excellent in adhesive property at low temperature.
Abstract:
An object of the present invention is to provide an adhesive for laminated sheets, which is excellent in initial adhesion to a plastic film and is also excellent in long-term hydrolysis resistance at high temperature in the production of a laminate using the plastic film; a laminated sheet obtainable by using the adhesive; and an outdoor material obtainable by using the laminated sheet. Disclosed is an adhesive for laminated sheets, said adhesive comprising: a urethane resin obtainable by mixing an acrylic polyol with an isocyanate compound; and a silane compound, wherein the silane compound contains an epoxy based silane compound, and wherein the acrylic polyol is obtainable by polymerizing a polymerizable monomer; the polymerizable monomer contains a monomer having a hydroxyl group and the other monomer; and the other monomer contains acrylonitrile. The adhesive is excellent in initial adhesion to a film and is also excellent in long-term hydrolysis resistance at high temperature. The adhesive for laminated sheets is preferably used for an outdoor material, and is particularly useful as an adhesive for solar battery back-sheets.
Abstract:
Preformed stabilizers useful for the production of low viscosity, high solids polymer polyols are produced by free-radical polymerization of: (a) at least one ethylenically unsaturated macromolecule or macromer with (b) at least three different ethylenically unsaturated monomers in the presence of (c) at least one free-radical polymerization initiator, and, optionally, (d) a liquid diluent, and, optionally, (e) a chain transfer agent.
Abstract:
The present invention broadly comprises an aircraft motion control auxiliary- power unit suspension system device, the aircraft motion control auxiliary power unit suspension system device comprising a first motion control nonelastomeric member (36) and a second motion control nonelastomeric member (38), a first motion control elastomer member (40) disposed to operatively interconnect the first motion control nonelastomeric member and the second motion control nonelastomeric member. The first motion control elastomer member includes an exterior surface coating formed from an elastomeric polymer dissolved in an organic solvent and the elastomeric polymer dissolved in the solvent is applied to an exterior surface of the first motion control elastomer member, the solvent evaporates, and the elastomeric polymer crosslinks.
Abstract:
A process for forming a conventional flexible polyurethane foam includes providing a polyol component including a PIPA polyol that is a dispersion having a solids content from 10% to 75 wt%, based on a total weight of the PIPA polyol, providing an isocyanate component that includes at least one polyisocyanate, providing an additive component that includes a catalyst, and forming a reaction mixture including the polyol component, the isocyanate component, and the additive component to form a flexible polyurethane foam with a resiliency value below 45%. The reaction mixture has an isocyanate index from 90 to 150. The PIPA polyol is a reaction product of a mixture including at least a low equivalent weight polyol having a number average hydroxyl equivalent weight of less than 80, a polyisocyanate compound having a number average isocyanate equivalent weight that is less than 225, and a liquid base poly ether polyol having a number average hydroxyl equivalent weight from 200 to 1500 and at least 80 % of secondary hydroxyl groups based on a total amount of hydroxyl groups in the liquid base polyether polyol.
Abstract:
An object of the present invention is to provide an adhesive for laminated sheets, which is excellent in curing rate and initial adhesion to a film after aging in producing a laminated sheet, and is also excellent in hydrolysis resistance over a long term at high temperature. Disclosed is an adhesive for laminated sheets, comprising a urethane resin obtainable by mixing an acrylic polyol with an isocyanate compound, wherein the acrylic polyol is a polyol having a glass transition temperature of from -20 to 20°C, which polyol is obtainable by polymerizing a polymerizable monomer; the polymerizable monomer includes a monomer having a hydroxyl group and the other monomer, and the other monomer includes acrylonitrile; and the isocyanate compound includes both an isocyanate compound having no aromatic ring and an isocyanate compound having an aromatic ring. The adhesive is excellent in initial adhesion to a film after aging, and in its curing rate in the case of producing a laminated sheet, and is also excellent in hydrolysis resistance over a long term at high temperature.
Abstract:
An object of the present invention is to provide a urethane adhesive for solar battery back sheets, which has satisfactory initial adhesion to a film in the production of a solar battery back sheet, satisfactory initial adhesive property after curing and high adhesive property at high temperature, and also has a sufficient hydrolysis resistance over the long term and is excellent in overall balance; a solar battery back sheet which is obtainable by using the adhesive; and a solar battery module. Disclosed is an adhesive for solar battery back sheets, including a urethane resin obtainable by the reaction of an acrylic polyol with an isocyanate compound, wherein the acrylic polyol is obtainable by polymerizing polymerizable monomers, the polymerizable monomers include a monomer having a hydroxyl group and other monomers, the monomer having a hydroxyl group includes a hydroxyalkyl (meth)acrylate, and the other monomers include acrylonitrile and (meth)acrylic ester(s).