摘要:
The present invention provides a glass fiber-reinforced crystalline resin composition superior in the surface properties and the mechanical properties of a molded article thereof. Specifically, provided is a glass fiber-reinforced crystalline resin composition containing a glass fiber sizing agent that is an aqueous resin containing an o-sulfobenzimide compound, a crystalline resin, glass fibers, wherein the glass fibers have been treated with the glass fiber sizing agent. An aqueous polyurethane resin is preferred as the aqueous resin.
摘要:
The present invention is an aqueous polyurethane resin composition for a flame retardant coated material comprised of an aqueous dispersion of a polyurethane resin obtained by extending a chain of an urethane prepolymer in an aqueous dispersion. The aqueous dispersion of the urethane prepolymer is obtained by reacting (a) a polyisocyanate component with (b) a polyol component which contains a phosphorus-containing polyol compound represented by the following general formula (1) as an essential component then dispersed the obtained prepolymer in the water,wherein a unit corresponding to the compound represented by the said general formula (1) is contained so that the phosphorus content in the urethane resin solid is 0.3 to 5.0 mass percent; R 1 in the formula (1) represents an alkylene group having 2 to 4 carbon atoms, and m and n represent a number from 1 to 10.
摘要:
An aqueous dispersion of polyurethane resin obtained by a chain elongation reaction in water, by adding (C) at least one chain extender selected from a group consisting of water-soluble polyamines, hydrazine and derivatives thereof to a dispersion liquid obtained by emulsifying and dispersing a mixture in water, said mixture comprising (B) at least one compound selected from the phosphorous compounds represented by the following formula (1) and (A) an urethane prepolymer and/or a neutralized urethane prepolymer material which has an isocyanate group at the terminal, wherein an urethane prepolymer of said component (A) is an urethane prepolymer obtained by (a1) an organic polyisocyanate and (a2) a polymeric polyol, and said neutralized urethane prepolymer material is a neutralized material obtained by neutralizing an urethane prepolymer which is obtained by further using (a3) compound having an anionic hydrophilic group and at least two active hydrogens in a molecule together with said components (a1) and (a2);
摘要:
The present invention provides a glass fiber-reinforced crystalline resin composition superior in the surface properties and the mechanical properties of a molded article thereof. Specifically, provided is a glass fiber-reinforced crystalline resin composition containing a glass fiber sizing agent that is an aqueous resin containing an o-sulfobenzimide compound, a crystalline resin, glass fibers, wherein the glass fibers have been treated with the glass fiber sizing agent. An aqueous polyurethane resin is preferred as the aqueous resin.