摘要:
The invention relates to a method for producing expandable styrene polymers by polymerizing at least one vinyl aromatic monomer in an aqueous suspension in the presence of at least one halogenated polymer as a flame retardant, graphite, and blowing agent, characterized in that, at the start of the polymerization, the aqueous suspension contains 1 to 30 wt% of at least one styrene polymer with respect to the sum of monomers and styrene polymer and the styrene polymer used at the start of the polymerization likewise contains at least one halogenated polymer as a flame retardant.
摘要:
Disclosed are expandable thermoplastic polymer particles composed of a polyphase polymer mixture that contains a blowing agent and has at least one continuous thermoplastic polymer phase, within which at least two different dispersed phases P1 and P2 are distributed. Also disclosed are methods for producing said particles and the use thereof for making elastic molded particle foam articles.
摘要:
The invention relates to a method for manufacturing a composition which consists of placing a product containing mostly polypropylene having a controlled fluidity of less than 10 g / 10 min. in contact with highly fluid polypropylene and a polymer grafted by maleic anhydride.
摘要:
A biaxially oriented polypropylene (BOPP) film with a novel coating layer which has an O2TR value in cc/m2/day in a range from 100 to 2000, and a MOSH value of 0.6 mg/kg or less is disclosed. This coating layer comprises a blend of additives that are approved for coatings for direct contact with food. In one embodiment, the coating layer comprises a poly-vinyl amine and a styrene butadiene resin emulsion.
摘要翻译:公开了一种双面取向聚丙烯(BOPP)薄膜,其新颖的涂层具有以cc / m 2 /天的范围为100至2000的O 2TR值和0.6mg / kg或更低的MOSH值。 该涂层包括被批准用于与食物直接接触的涂层的添加剂混合物。 在一个实施方案中,涂层包含聚乙烯基胺和苯乙烯丁二烯树脂乳液。
摘要:
The present disclosure relates to a thermoplastic composition having a better mold release performance. The disclosed thermoplastic composition comprises polycarbonate components, an impact modifier and a mold release composition. Also disclosed is a method for making the disclosed thermoplastic composition and an article of manufacture comprising the disclosed polymer composition.
摘要:
A composition includes specific amounts of a poly(phenylene ether), a rubber-modified polystyrene, a flame retardant containing an organophosphate ester, and a mold release agent containing a high viscosity polydiorganosiloxane. The composition excludes polyolefin waxes. The high viscosity polydiorganosiloxane can be provided in the form of a room temperature solid masterbatch, thereby facilitating compounding of the composition. The composition is useful for injection molding, and particularly useful for injection molding battery holders for cell phone tower back-up power systems.
摘要:
Disclosed are a halogen-free resin composition, and a prepreg and a laminate prepared by using the same. The halogen-free resin composition comprises the following components according to organic solid matters by weight parts: (A) 40-80 parts by weight of allyl modified benzoxazine resin; (B) 10-20 parts by weight of hydrocarbon resin; (C) 10-40 parts by weight of allyl modified polyphenylene oxide resin; (D) 0.01-3 parts by weight of initiating agent; (E) 10-100 parts by weight of filler; and (F) 0-80 parts by weight of phosphoric flame retardant. The prepreg and the laminate prepared by using the halogen-free resin composition have lower dielectric constant and lower dielectric loss tangent value, higher peeling strength, higher glass transition temperature, excellent heat resistance and good flame retardant effect.