An improved polyester block copolymer composition having a rubber-like elasticity, particularly having excellent moldability, impact resistance, heat resistance and water resistance, which comprises a polyester block copolymer produced from a crystalline aromatic polyester and a lactone in melt-admixture with a polytetramethylene terephthalate and optionally further with at least one epoxy compound.
Laminated photochromic lens and method of laminating a photochromic lens
申请人:PPG INDUSTRIES, INC.
公开号:EP0116924A2
公开(公告)日:1984-08-29
Discloses a lens having a curved, glass core, an external surface of a solid plastic element, and a layer of an adhesive therebetween.
公开了一种透镜,它有一个弯曲的玻璃镜芯、一个固体塑料元件的外表面和一层粘合剂。
Phosphorylated reaction products and compositions incorporating such products
申请人:UNION CARBIDE CORPORATION
公开号:EP0217410A2
公开(公告)日:1987-04-08
Novel phosphorylated compositions of a vinyl chloride copolymer or terpolymer, a phenoxy resin, a hydroxyalkyl acrylate or methacrylate-lactone adduct or a reaction product of a normally solid pendant-hydroxyl-containing thermoplastic polymer having at least 8 hydroxyl groups per molecular chain and an adduct which is the product of either a hydroxyalkyl acrylate or methacrylate or a lactone-acrylate adduct and an organic diisocyanate having improved dispersion characteristics suitable for use in applications such as magnetic recording media.
Flexible, self-cross-linking binders, useful for, e.g., paints and magnetic media composites, are prepared from hydroxyl-containing thermoplastic polymers reacted with condensates of diisocyanates and unsaturated esters. They can be cured with an electron beam.
Polymeric mixture for dyereceiving element used in thermal dye transfer
申请人:EASTMAN KODAK COMPANY
(a New Jersey corporation)
公开号:EP0228066A2
公开(公告)日:1987-07-08
A dye-receiving element for thermal dye transfer comprises a support having thereon a mixture of poly(caprolactone) or a linear aliphatic polyester with one or both of poly(styrene-co-acrylonitrile) and a bisphenol A polycarbonate. Dyes which are transferred to this receiving element have improved light stability.
一种用于染料热转移的染料接收元件包括一个支架,支架上有聚(己内酯)或线性脂肪族聚酯与聚(苯乙烯-共-丙烯腈)和双酚 A 聚碳酸酯中的一种或两种的混合物。转移到这种接收元件上的染料具有更好的光稳定性。