C08G18/6633

Dimensionally stable polyurethane molded bodies having low density
09713884 · 2017-07-25 · ·

The present invention relates to a process for producing polyurethane foam moldings where the density of the molding is at most 500 g/L, by mixing the following to give a reaction mixture: a) organic polyisocyanates with b) polyesterols, c) blowing agents, d) cell-opening additives selected from the group consisting of homo- or copolymers based on ethylhexyl acrylate, on polybutadiene, on polyisobutene, and on diorganosilicones, or a mixture of two or more of said antifoams, e) silicone-based cell stabilizers and optionally f) chain extenders and/or crosslinking agents, g) catalysts, and h) other auxiliaries and/or additives, and charging the materials to a mold, and permitting them to complete a reaction to give a polyurethane foam molding. The present invention further relates to polyurethane moldings obtainable by this process, and to the use of said moldings as shoe sole, steering wheel, seat, or armrest.

Precursor dielectric composition with thiosulfate-containing polymers

A precursor dielectric composition comprises: (1) a photocurable or thermally curable thiosulfate-containing polymer that has a T.sub.g of at least 50 C. and comprises: an organic polymer backbone comprising (a) recurring units comprising pendant thiosulfate groups; and organic charge balancing cations, (2) optionally, an electron-accepting photosensitizer component, and (3) one or more organic solvents in which the photocurable or thermally curable thiosulfate-containing polymer is dissolved or dispersed. These precursor dielectric compositions can be applied to various substrates and eventually cured to form dielectric compositions or layers for various types of electronic devices.

Addition compounds suitable as dispersants or anti-sedimentation agents
09574044 · 2017-02-21 · ·

An addition compound, prepared by reacting a) one or more polyisocyanates having an average functionality of 2-6; b) one or more compounds comprising at least one chain selected from the group consisting of polyester, polyether, polyacrylate, polyurethane, polyolefin and a combination thereof; and at least one isocyanate reactive group, wherein the at least one isocyanate reactive group is an amino group; and c) one or more compounds selected from the group consisting of N-(3-aminopropyl) imidazole (API), benzoguanamine (BGA) and N-(2-aminoethyl) piperazine (AEP). The addition compound is suitable as dispersant or anti-sedimentation agent, especially for pigments, fillers and matting agents.

RESIN MOLDED ARTICLE FOR AUTOMOBILE INTERIOR MATERIAL

Provided is a resin molded article for an automobile interior material, the resin molded article achieving both resin strength permitting formation of a thin film, and crease resistance. This molded article is to be used in an automobile interior material, the resin molded article being obtained by slush-molding a powdered thermoplastic urethane urea resin composition (P) that satisfies (1)-(5) below, said resin composition (P) containing an additive and a thermoplastic urethane urea resin (U) obtained by reacting a high-molecular diol (a), a linear alkane diol (b), a monool (c), a diamine (d), and an organic diisocyanate (e): (1) (a) contains a specific polyester diol; (2) the weight of (b) is within a specific range relative to the total weight of (a)-(e); (3) the tensile strength of a film comprising (P) is 8.0 MPa or higher; (4) the storage modulus of (P) at 130 C. is 0.1-5.0 MPa; (5) the ratio of the storage modulus of (P) at 50 C. to the storage modulus at 23 C. by a specific measurement method is 50% or higher.

Polymerizable composition for optical materials and application of same
12275813 · 2025-04-15 · ·

The polymerizable composition for optical materials of the present invention includes a polyester polyol (a), a compound (b) of which light absorption characteristics vary by sensing changes in environment; and a polymerization reactive compound (c).

POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIALS, OPTICAL MATERIAL AND PLASTIC LENS OBTAINED FROM COMPOSITION
20170002176 · 2017-01-05 · ·

A polymerizable composition for optical materials of the present invention includes a polyisocyanate compound (A), a polyol compound (B) represented by the following General Formula (1) having a number average molecular weight of 100 or more, a di- or higher functional active hydrogen compound (C) (here, the compound (B) is excluded), and a photochromic compound (D).

##STR00001##

PHOSPHINATE FLAME RETARDANT AND PROCESS FOR MANUFACTURE THEREOF

A phosphinate or a composition of phosphinates obtainable or obtained by reacting at least a phosphinic acid of formula (I) with an oxirane of formula (II):

##STR00001## wherein R1 and R2 are the same or different and independently represent H or a hydrocarbyl radical, with the exception that R1 and R2 may not each be H at the same time and with the hydrocarbyl radical selected from C.sub.1-C.sub.10 alkyl groups, and wherein R3 is an alkylenyl group which is optionally substituted with a heteroatom selected from O, N and S.

The phosphinate or phosphinate composition thus obtained can be used as reactive or additive flame retardant, to manufacture flame-retardant polymers or flame-retardant polymer compositions.

AQUEOUS DISPERSION OF POLYURETHANE RESIN AND AQUEOUS COATING MATERIAL
20260062509 · 2026-03-05 · ·

A reduction in the viscosity is achieved and improvements in the storage stability and the heat resistance of the coating film are achieved.

An aqueous dispersion of a polyurethane resin according to an embodiment is obtained by a reaction of a polyol (A), a polyisocyanate (B), and a chain extender (C). The polyol (A) includes an aromatic polyester polyol (A1), and an aliphatic diol (A2) having a hydrocarbon group in a side chain. The chain extender (C) includes a compound (C1) having three primary and/or secondary amino groups and not having hydroxy groups, and a compound (C2) having one or more hydroxy groups and two or more primary and/or secondary amino groups. The acid value is 11.0 to 23.0 mgKOH/g and the hydroxyl value is 8.0 to 23.0 mgKOH/g.