摘要:
The epoxy resin curing agent of the present invention comprises a compound represented by the following formula (1): wherein R represents a methyl group, an ethyl group, or a hydroxyl group, and n is an integer of 1 to 3.
摘要:
Provided is an additive masterbatch having excellent storage stability (agglomeration resistance), which also has reduced surface tackiness despite comprising a low-melting-point resin additive at a high concentration. The resin additive masterbatch of the present invention is characterized by comprising, with respect to 100 parts by mass of (A) a polyolefin resin, 65 to 300 parts by mass of (B) a resin additive having a melting point of not higher than 80°C; and 0.8 to 24 parts by mass of (C) a benzotriazole-based ultraviolet absorber.
摘要:
A process for making bis(aryloxyalkyl)terephthalates useful as antiplasticizers for thermoplastic polyesters is disclosed. Dimethyl terephthalate is reacted with an excess of an aryloxyalkanol in the presence of a condensation catalyst to produce an intermediate mixture comprising a bis(aryloxyalkyl)terephthalate, a mono(aryloxyalkyl)terephthalate, and unreacted aryloxyalkanol. This mixture continues to react at reduced pressure while unreacted aryloxyalkanol is removed and the mono-ester content is reduced to less than 1 mole % based on the combined amounts of mono- and bis-esters. Both steps are performed substantially in the absence of oxygen. Additional unreacted aryloxyalkanol is then removed to provide a purified bis(aryloxyalkyl)terephthalate having an overall purity of at least 98 mole % and a yellowness index less than 10. Careful control over catalysis, exposure to air, and other process conditions enables the preparation of high yields of bis(aryloxyalkyl)terephthalates that have low color and other valuable attributes. A method of producing bis(aryloxyalkyl)terephthalate articles having improved compressive strength is also disclosed.
摘要:
Disclosed is a radiation-curable insulation composition. The composition comprises from 5% to 35%, by weight, of an ethylene-vinyl acetate copolymer, 30% to 65% of a high density polyethylene, 30% to 60% of a metal hydroxide, 0.5% to 5% of a mercaptobenzimidazole salt, 0.05% to 5% of a phenolic antioxidant, 0.05% to 5% of zinc oxide, and 0.5% to 5% of a crosslinking agent. The composition is useful for wire and cable insulation applications. It provides the wire and cable insulation with improved abrasion resistance.
摘要:
The invention relates to nonmetal material modified thermoplastic resin composite, comprising the following materials by weight percentages: 50-70% of filling, 25-40% of polypropylene, 3-6% of maleic anhydride modified polypropylene, 1-3% of titanium dioxide and 1-2% antioxidant. Said filling has been modified by stearic acid. The invention also provides a method for producing products like sanitary wares, hardware of sanitary wares, outdoor products, decorative pipes of external walls and decorations of public scenes using the nonmetal material modified thermoplastic resin composite. The raw materials are widely available and the preparation does not require long-time burning with high energy consumption, thus possessing the advantages such as low energy consumption, high mechanical automation degree, low labor intensity, and high yield, which is applicable to industrial mass production. The invented nonmetal material modified thermoplastic resin composite is applicable to the production of sanitary wares, hardware of sanitary wares, outdoor products, decorative pipes of external walls and decorations of public scenes.
摘要:
A polyamide resin molding material having excellent thermal weldability to thermoplastic polyurethane molded articles, which is a polyamide resin molding material including from 5 to 40 parts by mass of a specified aromatic compound (B) based on 100 parts by mass of a polyamide resin (A) having a (terminal amino group/terminal carboxyl group) molar ratio of more than 1; and a laminate using the same are disclosed.
摘要:
The present invention provides a thermoplastic polymer composition containing a particular phenol compound or organic phosphorous compound, trehalose and a thermoplastic polymer, as well as a stabilizer composition containing a particular phenol compound or organic phosphorous compound and trehalose. A combined use of a particular phenol compound or organic phosphorous compound and trehalose can improve processing stability of a thermoplastic polymer composition.
摘要:
The present invention provides a thermoplastic polymer composition containing a particular phenol compound or organic phosphorous compound, glucose and a thermoplastic polymer, as well as a processing stabilizer containing a particular phenol compound or organic phosphorous compound and glucose. A combined use of a particular phenol compound or organic phosphorous compound and glucose can improve processing stability of a thermoplastic polymer composition.