摘要:
A crystalline resin molded article with a non-uniform appearance, or a process for making such an article, comprising a molded blend of a granular crystalline resin base resin and a granular crystalline resin colored concentrate which has contrasting color properties. The granular color concentrate comprising a crystalline resin carrier resin having a melting temperature sufficiently higher than the base resin for non-uniformly dispersing the granular color concentrate into the base resin during molding to produce a non-uniform appearance in said molded article.
摘要:
An improved floatation separation process wherein the improvement comprises dissolving in a floatation bath sufficient alkali metal salt or alkaline earth metal salt of a phosphate, a pyrophosphate, a metaphosphate or a polyphosphate to provide a concentration greater than 1.0 grams per cubic centimeter and generally about 1.05 to about 1.6. g/cc. A particular salt is sodium dihydrogen phosphate. Preferably, the floatation process is employed to separate physical mixtures of plastic parts.
摘要翻译:一种改进的浮选分离方法,其中改进包括在浮选浴中溶解足够的磷酸盐,焦磷酸盐,偏磷酸盐或多磷酸盐的碱金属盐或碱土金属盐,以提供大于1.0克/立方厘米的浓度,通常为约1.05 至约1.6。 g / cc。 特定的盐是磷酸二氢钠。 优选地,浮选过程用于分离塑料部件的物理混合物。
摘要:
A composition is disclosed which includes polybutylene terepthalate or polyethylene terephthalate, or blends of polybutylene terephthalate and polyethylene terephthalate, a polycarbonate, barium sulfate, strontium sulfate, zinc sulfate or zirconium oxide fillers, a phosphorus-containing stabilizer and optionally a styrene rubber impact modifier.
摘要:
A composition useful in the fabrication of molded articles contains a blend of a polycarbonate, a high impact rubbery modifier such as a core-shell polymer and a catalyst quencher selected from a Group IB or IIB metal phosphate salts such as sodium dihydrogen phosphate wherein the hydroyltic stability is improved via the incorporation of an epoxy-functional polyester derived from the reaction of a polyfunctional epoxy compound and a carboxylic acid-functional polyester.
摘要:
A thermoplastic resin composition is provided comprising an aromatic polycarbonate resin, rubber modified vinyl aromatic-vinyl cyanide graft copolymer, and glass fibers which have been treated with polyolefin wax and optionally a functionalized silane. The nature of the coating on the glass fibers provides the composition with improved impact strength over binding glass. The composition is useful as molding material.
摘要:
The polyester-polycarbonate blend composition useful as a molding composition shows improved hydrolytic stability. The polyester-polycarbonate comprises polyester having epoxy functionality, polycarbonate, and a catalyst quencher selected from the group of certain quenchers, e.g., metal acid phosphates, metal acid pyrophosphates and metal polyphosphates. Preferred polyesters having epoxy functionality comprise a polyester which is reacted with a difunctional epoxy compound. The invention provides hydrolytic stability which is improved over polyester-polycarbonate compositions which employ other catalyst quenchers for reducing transesterification. The invention also shows hydrolytic stability which is superior to blends in which polyester and polyfunctional epoxy compounds are merely blended with the polycarbonate and catalyst quencher.
摘要:
Polyphenylene ether- polyamide compositions having improved resistance to water absorption and swell are provided by incorporating therein a phenolic compound.
摘要:
A glass filled copolyether-polyester resin composition is provided exhibiting improved tensile and flexural strength as well as high impact strength. The improved properties are obtained by employing a glass fiber reinforcing agent comprising an epoxy functional cyanurate or isocyanurate. The compositions are useful for making molded fiber reinforced thermoplastic articles.
摘要:
A low gloss thermoplastic with good physical properties consists of a blend of ASA and a gloss-reducing amount of a glycidyl (meth)acrylate copolymer.
摘要:
A composition which comprisesa. an aromatic polycarbonate,b. a polyolfefin,c. an ethylene vinyl alcohol copolymer,d. a hydrogenated alkylidene vinyl aromatic block copolymer graft modified with an unsaturated dicarboxylic acid or unsaturated dicarboxylic acid anhydride.