The present invention relates to compounds of formula (I),
and salts thereof, processes for their preparation, to compositions containing them and to their use in the treatment of various disorders, such as allergic rhinitis.
2-Substituted 4-Benzylphthalazinone Derivatives as Histamine H1 and H3 Antagonists
申请人:Gore Paul Martin
公开号:US20090105225A1
公开(公告)日:2009-04-23
The present invention relates to compounds of formula (I),
and salts thereof, processes for their preparation, to compositions containing them and to their use in the treatment of various disorders, such as allergic rhinitis.
Resin composite containing polyamide matrix and polyolefin grains dispersed therein
申请人:UBE INDUSTRIES, LTD.
公开号:EP0683210A2
公开(公告)日:1995-11-22
In a resin composite, polyolefine grains are dispersed in a polyamide matrix. Each of the polyolefine grains has a core made of an unmodified polyolefine and a shell made of another polyolefine that is modified. In one embodiment, the core is made of a crystalline polypropylene resin (C), and the shell is made of modified copolymer (B) having ethylene units and α-olefine units. The modified copolymer (B) may have the α-olefine units as a major component. The resin composite has 30 to 80 percents by weight of polyamide (A), 1 to 30 percents by weight of the modified copolymer (B), and 19 to 69 percents by weight of the crystalline polypropylene resin (C) wherein the sum of the polyamide, the modified copolymer, and the crystalline propylene resin is 100 percents by weight. In another embodiment, the core is made of an unmodified copolymer (E) having ethylene units and α-olefine units, and the shell is made of a modified crystalline polypropylene resin (D). The copolymer may have the ethylene units as a major component. The resin composite has 30 to 80 percents by weight of the polyamide (A), 5 to 50 percents by weight of the modified crystalline polypropylene resin (D), and 5 to 65 percents by weight of the copolymer (E) wherein the sum of the polyamide, the modified crystalline polypropylene resin, and the copolymer is 100 percents by weight. The unmodified crystalline polypropylene resin (C) is modified with at least one of α,β-unsaturated caboxylic acid and α,β-unsaturated caboxylate to give the modified crystalline polypropylene resin (D). The resin composite has both the properties possessed by polyamide and the properties possessed by polyolefine in good balance, and further has properties that are not sufficiently possessed by the polyamide or polyolefine, specifically, low warpage upon molding, good dimensional stability and good impact resistance.