Flame retarding resin composition
AssigneeDainippon Ink and Chemicals, Inc.
InventorsShioji Mizuno, Norio Enokimoto, Kazuyoshi Oji
Life of this patent
Estimating the term…
Abstract
A flame-retarding resin composition comprising (1) polybutylene terephthalate, (2) an organohalogen compound as a flame-retarding agent, (3) a flame-retarding supplementary agent, (4) calcium sulfate, and (5) an inorganic fibrous reinforcing agent, and optionally (6) at least one polymer selected from a saponified polyvinyl acetate having a saponification degree of greater than 50 mole %, an ethylene/vinyl acetate copolymer, and a saponified ethylene/vinyl acetate copolymer.
Claims16
A flame-retarding resin composition comprising (1) polybutylene terephthalate, (2) an organohalogen compound as a flame-retarding agent, (3) a flame-retarding supplementary agent, (4) calcium sulfate, and (5) glass fiber reinforcing agent, and (6) at least one polymer selected from a saponified polyvinyl acetate having a saponification degree of greater than 50 mole%, an ethylene/vinyl acetate copolymer, and a saponified ethylene/vinyl acetate copolymer.
A process for preparing a flame-retarding resin composition, which comprises heating and kneading (1) polybutylene terephthalate, (2) an organohalogen compound as a flame-retarding agent, (3) a flame-retarding supplementary agent, (4) calcium sulfate, and (5) glass fiber reinforcing agent, and (6) at least one polymer selected from a saponified polyvinyl acetate having a saponification degree of greater than 50 mole%, an ethylene/vinyl acetate copolymer, and a saponified ethylene/vinyl acetate copolymer.
Dependencies are inferred from the claim text.