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    • 53. 发明授权
    • Mixtures of specific dihydroxydiphenylcycloalkane polycarbonates and
mineral oil
    • 特定二羟基二苯基环烷烃聚碳酸酯和矿物油的混合物
    • US5583174A
    • 1996-12-10
    • US514318
    • 1995-08-11
    • Burkhard KohlerPeter Bier
    • Burkhard KohlerPeter Bier
    • C08K5/00C08K5/01C08L23/08C08L69/00C08L87/00
    • C08K5/01
    • Mixtures ofA) 75 to 99.5 wt. % of a high molecular weight, thermoplastic, aromatic polycarbonate with a molecular weight M.sub.w (weight average) of at least 10,000 which contains bifunctional carbonate structural units of the formula (I), ##STR1## in which R.sup.1 and R.sup.2, independently of each other, represent hydrogen, halogen, preferably chlorine or bromine, or a C.sub.1 -C.sub.8 -alkyl, C.sub.5 -C.sub.6 -cycloalkyl, C.sub.6 -C.sub.10 -aryl, preferably phenyl, or C.sub.7 -C.sub.12 -aralkyl, preferably phenyl-C.sub.1 -C.sub.4 -alkyl, in particular a benzyl group,m is an integer from 4 to 7, preferably 4 or 5,R.sup.3 and R.sup.4 can be selected separately for each X and, independently of each other, represent hydrogen or a C.sub.1 -C.sub.6 -alkyl group andX represents carbon,with the proviso that R.sup.3 and R.sup.4 simultaneously represent an alkyl group on at least one X atom.B) 0.5 to 15 wt. % of an aliphatic hydrocarbon with a molecular weight of 300 to 3,000 in particular mineral oil andC) 0 to 11 wt. % of a terpolymer of ethylene, acrylate and a monomer with epoxy groups, and the preparation of these mixtures.
    • A)的混合物75-99.5wt。 %的具有至少10,000的分子量Mw(重均分子量)至少为10,000的高分子量,热塑性芳族聚碳酸酯,其含有式(I)的双官能碳酸酯结构单元,其中R1和R2独立地为 代表氢,卤素,优选氯或溴,或C 1 -C 8 - 烷基,C 5 -C 6 - 环烷基,C 6 -C 10 - 芳基,优选苯基或C 7 -C 12 - 芳烷基,优选苯基-C 1 -C 4 - 烷基,特别是苄基,m是4至7,优选4或5的整数,R 3和R 4可以针对每个X分别选择,并且彼此独立地表示氢或C 1 -C 6 - 烷基 且X表示碳,条件是R3和R4同时表示至少一个X原子上的烷基。 B)0.5〜15重量% %的分子量为300〜3000的脂肪族烃,特别是矿物油,C)0〜11重量% %的乙烯,丙烯酸酯和具有环氧基团的单体的三元共聚物,以及这些混合物的制备。
    • 60. 发明授权
    • Polycarbonate foam articles
    • 聚碳酸酯泡沫文章
    • US5158985A
    • 1992-10-27
    • US815085
    • 1991-12-27
    • Burkhard KohlerKlaus HornWolfgang EbertKlaus KircherJohann Piontek
    • Burkhard KohlerKlaus HornWolfgang EbertKlaus KircherJohann Piontek
    • C08G63/64C08G64/42C08J9/02C08J9/08C08K5/00C08K5/09C08K5/10C08K5/109C08L69/00
    • C08J9/08C08G63/64C08G64/42C08J9/02C08J2369/00
    • A process for the production of polycarbonate foam moldings is disclosed. Accordingly, a composition is prepared comprising mixing a thermoplastic polycarbonate resin and 0.01 to 1 mole-% of a transesterification catalyst anda) 0.1 to 5 mole-% of an aromatic polycarboxylic acid, optionally along with about 0.1 to 5 mole-% of at least one member selected from the group consisting of aliphatic hydroxy carboxylic acids and aliphatic polyalcohols, orb) 0.1 to 5 mole-% of H.sub.2 O, optionally along with at about 0.1 to 5 mole-% of at least one member selected from the group consisting of aliphatic hydroxycarboxylic acids and an aliphatic alcohols, orc) the additives of said a) and b), ord) 0.1 to 5 mole-% of at least one member selected from the group consisting of diarylcarbonates and oligocarbonates,said percent based in every case on moles aromatic carbonate structural units ##STR1## in which --O--R--O is a diphenolate residue. The composition obtained is processed to foam moldings by injection molding or by extrusion at temperatures of 210.degree. C. to 340.degree. C.
    • 公开了生产聚碳酸酯泡沫塑料模制品的方法。 因此,制备组合物,其包括将热塑性聚碳酸酯树脂和0.01至1摩尔%的酯交换催化剂混合,和(ii)0.1至5摩尔%的芳族多元羧酸,任选地与约0.1至5摩尔% 至少一种选自脂肪族羟基羧酸和脂肪族多元醇的成员,或b)0.1〜5摩尔%的H 2 O,任选与约0.1〜5摩尔%的至少一种选自以下的成员: 的脂族羟基羧酸和脂族醇,或c)所述a)和b)的添加剂,或d)0.1至5摩尔%的选自二芳基碳酸酯和寡碳酸酯的至少一种,所述百分比基于 芳香族碳酸酯结构单元“IMAGE”中的每种情况,其中-OR是二酚酸酯残基。 将得到的组合物通过注射成型或在210℃至340℃的温度下挤出加工成泡沫成型体。