-
公开(公告)号：US4276247A
公开(公告)日：1981-06-30
申请号：US122229
申请日：1980-02-19
CPC分类号： C08J9/08 , C08J9/02 , C08J2323/06 , Y10S264/05 , Y10S264/18
摘要： Novel processes and compositions are provided for the preparation of foamed, crosslinked polyethylene utilizing cyclic peroxyketal crosslinking/blowing agents. The novel compositions include esters of thiodipropionic acid as activators.
摘要翻译： 提供了使用环状过氧化缩酮交联/发泡剂制备发泡交联聚乙烯的新方法和组合物。 新型组合物包括硫代二丙酸作为活化剂的酯。
-
公开(公告)号：US4443376A
公开(公告)日：1984-04-17
申请号：US424820
申请日：1982-09-27
IPC分类号： C07C409/22 , C08F299/04 , C07C179/14
CPC分类号： C07C409/22 , C07C409/38 , C08F299/045
摘要： Gem-diperoxyesters of the formula: ##STR1## where R is selected from methyl and ethyl; R.sub.1 is ethyl when R is ethyl; R.sub.1 is hydroxyalkyl of 1 to 7 carbon atoms when R is methyl; and each R.sub.2 is ##STR2## where each of R.sub.3, R.sub.4, and R.sub.5 is selected from hydrogen and alkyl, provided not more than one of R.sub.3, R.sub.4, and R.sub.5 is hydrogen, R.sub.3, R.sub.4, and R.sub.5 collectively containing from 2 to 12 carbon atoms.The compounds are particularly efficient at varying temperatures from ambient to 60.degree. C. for the initiation of the polymerization of vinyl chloride. They also have high efficiency in the curing of polyester resins and in the polymerization of other monomers and comonomers having ethylenic unsaturation.
摘要翻译： 下式的Gem-diperoxyester：其中R选自甲基和乙基; 当R为乙基时，R 1为乙基; 当R为甲基时，R 1为1至7个碳原子的羟烷基; 并且每个R 2是
，其中R 3，R 4和R 5各自选自氢和烷基，条件是不多于一个R 3，R 4和R 5是氢，R 3，R 4和R 5共同含有2至12个 碳原子。 该化合物在环境温度至60℃的不同温度下特别有效，用于引发氯乙烯的聚合。 它们在聚酯树脂的固化和其它单体和具有烯属不饱和键的共聚单体的聚合中也具有高效率。 -
公开(公告)号：US4216294A
公开(公告)日：1980-08-05
申请号：US910259
申请日：1978-05-30
申请人： Reidar Halle , Ronald L. Pastorino
发明人： Reidar Halle , Ronald L. Pastorino
CPC分类号： C08J9/08 , C08G18/68 , C08G2101/0058 , C08G2101/0066 , C08J2367/06 , Y10S264/05
摘要： Unsaturated polyester resin foams or cellular structures of varying low densities are prepared quickly at ambient temperatures from an admixture which comprises a liquid unsaturated curable polyester resin, an organic isocyanate compound, a suitable surfactant, an accelerator and a particular combination of peroxide curing agents, which also serves to initiate the release of gases that permit expansion of the resin in a controlled manner to obtain a foamed structure.
摘要翻译： 不饱和聚酯树脂泡沫或不同密度的多孔结构物在环境温度下从包含液体不可固化聚酯树脂，有机异氰酸酯化合物，合适的表面活性剂，促进剂和过氧化物固化剂的特定组合的混合物快速制备，其中 还用于启动允许以受控方式膨胀树脂以获得泡沫结构的气体释放。
-
公开(公告)号：US4370459A
公开(公告)日：1983-01-25
申请号：US166210
申请日：1980-07-07
IPC分类号： C08F4/00 , C07C67/00 , C07C407/00 , C07C409/22 , C07C409/38 , C08F4/28 , C08F4/36 , C08F283/01 , C08F299/00 , C08F299/04 , C08F14/06
CPC分类号： C08F299/045 , C07C409/34
摘要： Gem-diperoxyesters of the formula: ##STR1## where R is selected from methyl and ethyl; R.sub.1 is ethyl when R is ethyl; R.sub.1 is hydroxyalkyl of 1 to 7 carbon atoms when R is methyl; and each R.sub.2 is ##STR2## where each of R.sub.3, R.sub.4, and R.sub.5 is selected from hydrogen and alkyl, provided not more than one of R.sub.3, R.sub.4, and R.sub.5 is hydrogen, R.sub.3, R.sub.4, and R.sub.5 collectively containing from 2 to 12 carbon atoms.The compounds are particularly efficient at varying temperatures from ambient to 60.degree. C. for the initiation of the polymerization of vinyl chloride. They also have high efficiency in the curing of polyester resins and in the polymerization of other monomers and comonomers having ethylenic unsaturation.
摘要翻译： 下式的Gem-diperoxyester：其中R选自甲基和乙基; 当R为乙基时，R 1为乙基; 当R为甲基时，R 1为1至7个碳原子的羟烷基; 并且每个R 2是
，其中R 3，R 4和R 5各自选自氢和烷基，条件是不多于一个R 3，R 4和R 5是氢，R 3，R 4和R 5共同含有2至12个 碳原子。 该化合物在环境温度至60℃的不同温度下特别有效，用于引发氯乙烯的聚合。 它们在聚酯树脂的固化和其它单体和具有烯属不饱和键的共聚单体的聚合中也具有高效率。 -
5.发明授权
公开(公告)号：US4197244A
公开(公告)日：1980-04-08
申请号：US929754
申请日：1978-07-31
IPC分类号： C07D323/00 , C07C179/08
CPC分类号： C07D323/00
摘要： High density polyethylene is cross-linked with certain cyclic perketals including a group of novel cyclic perketals. Typical of the novel molecules is 3,6,6,9,9-pentamethyl-3-ethylacetate-1,2,4,5-tetraoxy cyclononane.
摘要翻译： 高密度聚乙烯与某些包括一组新型环状胃肠缩酮的环状胃肠素交联。 典型的新型分子是3,6,6,9,9-五甲基-3-乙基乙酸酯-1,2,4,5-四氧基环壬烷。
-
公开(公告)号：US4271279A
公开(公告)日：1981-06-02
申请号：US688874
申请日：1976-05-21
IPC分类号： C07D323/00 , C08K5/159 , C08F8/06
CPC分类号： C07D323/00 , C08K5/159
摘要： High density polyethylene is cross-linked with certain cyclic perketals including a group of novel cyclic perketals. Typical of the novel molecules is 3,6,6,9,9-pentamethyl-3-ethylacetate-1,2,4,5-tetraoxy cyclononane.
-
公开(公告)号：US4069239A
公开(公告)日：1978-01-17
申请号：US774833
申请日：1977-03-07
IPC分类号： C08F4/00 , C07C67/00 , C07C407/00 , C07C409/32 , C07C409/34 , C08F2/00 , C08F2/50 , C08F4/28 , C08F4/34 , C08F299/04 , C08K5/14 , C07C69/96 , C07C71/00
CPC分类号： C08K5/14 , C08F299/045 , C08F4/34
摘要： Acyl peroxycarbonic esters of the formula ##STR1## in which R is methyl or ethyl, R' is alkyl, and R and R' together have 17 or more carbon atoms. The compounds have unusual thermal stability, together with improved polymerization initiating efficiency. Particularly outstanding efficiency is found in connection with the polymerization of methyl methacrylate.
-
8.发明授权
公开(公告)号：US4056561A
公开(公告)日：1977-11-01
申请号：US774832
申请日：1977-03-07
IPC分类号： C08F299/08 , C08K5/14 , C08G77/04 , C08F2/00
CPC分类号： C08F299/08 , C08K5/14
摘要： Acyl peroxycarbonic esters of the formula ##STR1## in which R is methyl or ethyl, R' is alkyl, and R and R' together have 17 or more carbon atoms. The compounds have unusual thermal stability, together with improved polymerization initiating efficiency. Particularly outstanding efficiency is found in connection with the vulcanization of silicone rubber.
摘要翻译： 式“IMAGE”的酰基过氧碳酸酯，其中R是甲基或乙基，R'是烷基，R和R'一起具有17个或更多个碳原子。 这些化合物具有不寻常的热稳定性，同时提高了聚合引发效率。 与硅橡胶硫化相关的特别优异的效率。
-
9.发明授权Thermally stable high molecular weight acyl peroxycarbonic esters in polyester curing 失效聚酯固化中热稳定的高分子量酰基过氧碳酸酯
公开(公告)号：US4129613A
公开(公告)日：1978-12-12
申请号：US817634
申请日：1977-07-21
IPC分类号： C08F4/00 , C07C67/00 , C07C407/00 , C07C409/32 , C07C409/34 , C08F2/00 , C08F2/50 , C08F4/28 , C08F4/34 , C08F299/04 , C08K5/14 , C08L67/06
CPC分类号： C08K5/14 , C08F299/045 , C08F4/34
摘要： Acyl peroxycarbonic esters of the formula ##STR1## in which R is methyl or ethyl, R' is alkyl, and R and R' together have 17 or more carbon atoms. The compounds have unusual thermal stability, together with improved polymerization initiating efficiency. Particularly outstanding efficiency is found in connection with the curing of polyester resins.
摘要翻译： 式“IMAGE”的酰基过氧碳酸酯，其中R是甲基或乙基，R'是烷基，R和R'共有17个或更多个碳原子。 这些化合物具有不寻常的热稳定性，同时提高了聚合引发效率。 与聚酯树脂的固化有关的特别突出的效率。
-
公开(公告)号：US4051310A
公开(公告)日：1977-09-27
申请号：US696463
申请日：1976-06-16
IPC分类号： C08F4/00 , C07C67/00 , C07C407/00 , C07C409/32 , C07C409/34 , C08F2/00 , C08F2/50 , C08F4/28 , C08F4/34 , C08F299/04 , C08K5/14 , C08F20/10 , C08G63/12 , C08G77/04
CPC分类号： C08K5/14 , C08F299/045 , C08F4/34
摘要： Acyl peroxycarbonic esters of the formula ##STR1## in which R is methyl or ethyl, R' is alkyl, and R and R' together have 17 or more carbon atoms. The compounds have unusual thermal stability, together with improved polymerization initiating efficiency. Particularly outstanding efficiency is found in connection with the polymerization of methyl methacrylate.
摘要翻译： 式“IMAGE”的酰基过氧碳酸酯，其中R是甲基或乙基，R'是烷基，R和R'一起具有17个或更多个碳原子。 这些化合物具有不寻常的热稳定性，同时提高了聚合引发效率。 与甲基丙烯酸甲酯的聚合有关的特别突出的效率。
-
-
-
-
-
-
-
-
-
搜索结果
18 条记录 (耗时 0.019 秒)