摘要:
The disclosed technology relates to a plastic compound suitable for preparing articles, such as pipe, with good physical properties, such as impact strength, and resistance to environmental stress cracking (ESC). In particular, the technology relates to a vinyl chloride resin, which includes chlorinated polyvinyl chloride ("CPVC") homopolymer. Further-more, the invention relates to vinyl chloride homopolymer compounds containing the vinyl chloride homopolymer resin, and articles made from such compounds, which compounds meet 23447 cell classifications under ASTM D1784.
摘要:
(a)ハロゲン化イソオレフィンパラアルキルスチレン共重合体;(b)酸無水物基を有する変性ゴム;及び(c)エチレン-ビニルアルコール共重合体を含むポリマー成分、並びに、(d)高級脂肪酸アルカリ土類金属塩からなる加工助剤;及び(e)架橋剤含む熱可塑性エラストマー組成物であって、エラストマー成分((a)+(b))中におけるハロゲン化イソオレフィンパラアルキルスチレン共重合体(a)の重量比率(W a )が5~60wt%であり、エラストマー成分((a)+(b))中における酸無水物基を有する変性ゴム(b)の重量比率(W b )が95~40wt%であり、高級脂肪酸アルカリ土類金属塩からなる加工助剤(d)の含有量(W d )が、ハロゲン化イソオレフィンパラアルキルスチレン共重合体(a)100質量部に対して0.3~30質量部であることを特徴とする、前記熱可塑性エラストマー組成物。
摘要:
This invention relates to the thermal stabilization of halogen-containing polymer compound compositions, more particularly, this invention relates to a poly(vinyl chloride) (PVC) or a chlorinated polyvinyl chloride (cPVC) compound composition comprising either methyl, butyl or octyl tin mercaptide stabilizer, at least one salt of a polymeric polyacid material in the form of a solid on its own, and greater than or equal to 0.52wt% moisture level in the final halogen-containing polymer compound composition.
摘要:
Adhesive compositions comprising (a) adhesive polymers or copolymers prepared from monomers selected from the group consisting of styrene, butadiene, acrylonitrile, ethylene, vinyl acetate acrylic acid, esters of acrylic acid, methacrylic acid and esters of methacrylic aid or combinations thereof; and (b) from 1 to 55 % an a dry weight basis of a polymeric additive comprising a low molecular weight polymer having a number average molecular weight of 20,000 or less and which comprises polymerized units of at least one ethylenically unsaturated monomer and 5 weight percent or less of a polymerized acid-containing monomer. In preferred form, the polymeric additive is polymerized in the presence of a metal chelate chain transfer agent. In certain embodiments, the polymeric additive has a midpoint Tg of at least 0 DEG C or greater. Further embodiments of the present invention include methods for forming the polymeric additive in situ in the adhesive composition.
摘要:
A method of forming a toughened article from a blend of a thermoplastic polymer and a comb copolymer is disclosed, along with the toughened article produced thereby. Compositions such as solids blends and melt blends, including a thermoplastic polymer and a comb copolymer, are also disclosed.
摘要:
An aqueous coating composition comprising a comb copolymer is disclosed. A method of forming a coating from the aqueous coating composition, and a coating formed by that method are also disclosed, as is a method of forming the comb copolymer. The comb copolymer is characterized in that aqueous dispersions of the comb copolymer have a Hard/Soft Balance Advantage value of at least 25 %. The aqueous coating composition is capable of producing coatings having an excellent balance of hard and soft properties.
摘要:
A method of forming a toughened article from a blend of a thermoplastic polymer and a comb copolymer is disclosed, along with the toughened article produced thereby. Compositions such as solids blends and melt blends, including a thermoplastic polymer and a comb copolymer, are also disclosed.