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公开(公告)号：US3940365A
公开(公告)日：1976-02-24
申请号：US509742
申请日：1974-09-26
IPC分类号： C08L59/00 , C08K5/00 , C08K5/13 , C08K5/20 , C08K5/21 , C08K5/22 , C08K5/23 , C08K5/25 , C08K5/29 , C08K5/30 , C08K5/31 , C08K5/34
摘要： Polyacetals can be stabilized by means of a stabilizing composition, one of its components acting concurrently as a nucleating agent. Linear oxymethylene-polymers are used as polyacetals. The stabilizing composition consists of an urea-like compound and a phenolic anti-oxidation agent. Moulding compositions based on these stabilized polyacetals are appropriate for being worked-up in the thermoplastic state to shaped articles of all kinds.
摘要翻译： 聚缩醛可以通过稳定组合物稳定，其组分之一同时作为成核剂。 线性甲醛聚合物用作聚缩醛。 稳定组合物由脲类化合物和酚类抗氧化剂组成。 基于这些稳定化的聚缩醛的成型组合物适于在热塑性状态下处理以成型各种各样的制品。
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公开(公告)号：US3931102A
公开(公告)日：1976-01-06
申请号：US512296
申请日：1974-10-04
IPC分类号： C08L59/00 , C08K5/34 , C08K5/3492 , C08K5/13 , C08K5/21
CPC分类号： C08K5/3492 , C08K5/34
摘要： A moulding composition based on poly(oxymethylene) containing a substituted ureido-s-triazine as nucleating and stabilizing agent is an excellent engineering plastic useful for preparing shaped articles having stable dimensions and an exact size.
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公开(公告)号：US3957780A
公开(公告)日：1976-05-18
申请号：US512022
申请日：1974-10-04
IPC分类号： C07D251/14 , C07D251/16 , C07D251/18 , C07D251/22 , C08K5/00 , C08K5/3477 , C08K5/3492 , C09K15/30 , C07D251/40 , C07D251/48
CPC分类号： C08K5/3492 , C08K5/34
摘要： Hydroxyphenyl-ureido-s-triazines are prepared by reacting 4H-1,3-benzoxazin-4-ones with guanyl urea. The triazine derivatives are useful as UV stabilizers for plastic materials.
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