专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06025114A Liquid photocurable compositions 失效
标题翻译：液体光固化组合物
公开(公告)号：US06025114A
公开(公告)日：2000-02-15
申请号：US913466
申请日：1997-09-11
申请人： Ajay Haridas Popat , John Robert Lawson
发明人： Ajay Haridas Popat , John Robert Lawson
IPC分类号： B29C67/00 , C08F2/48 , C08F290/06 , G03C9/08 , G03F7/00 , G03F7/027 , G03F7/028
CPC分类号： G03F7/0037 , G03F7/027
摘要： 1. This invention relates to a liquid composition comprising:a) 2 to 20 parts of a monomeric poly(meth)acrylate having a functionality of at least 3 and a MW of at least 650;b) 20 to 60 parts of a urethane(meth)acrylate having a functionality of 2 to 4 and a MW of 400 to 10,000;c) 20 to 80 parts of a monomeric or oligomeric di(meth)acrylate based on bisphenol A or bisphenol F; andd) 0.1 to 10 parts of a photoinitiator;wherein all parts are by weight and the total number of parts of a)+b)+c)+d) add up to 100.The compositions are suitable for the stereolithographic production of three-dimensional articles such as models of mechanical and body parts and are particularly notable for their low curl & shrinkage coupled with fast rate of cure.
摘要翻译： PCT No.PCT / GB96 / 00518 Sec。 371日期：1997年9月11日 102（e）1997年9月11日PCT PCT 1996年3月6日PCT公布。公开号WO96 / 28763 本发明涉及一种液体组合物，其包含：a）2至20份官能度至少为3且MW至少为650的单体聚（甲基）丙烯酸酯; b）20〜60份官能度为2〜4，MW为400〜10,000的氨基甲酸酯（甲基）丙烯酸酯; c）20至80份基于双酚A或双酚F的单体或低聚二（甲基）丙烯酸酯; 和d）0.1至10份光引发剂; 其中所有份数均为重量，a）+ b）+ c）+ d）的总数为d）加起来为100.该组合物适用于三维制品的立体光刻产生，例如机械和身体部位的模型并且特别值得注意的是它们的低卷曲和收缩加上快速的固化速度。

2. 发明授权

US3996221A Dyestuffs 失效
标题翻译：染料
公开(公告)号：US3996221A
公开(公告)日：1976-12-07
申请号：US539744
申请日：1975-01-09
申请人： John Lindley Leng , Brian Parton , Denis Robert Annesley Ridyard , John Robert Lawson
发明人： John Lindley Leng , Brian Parton , Denis Robert Annesley Ridyard , John Robert Lawson
IPC分类号： C09B19/02 , C09B62/002 , C09B62/04 , C07D265/00 , C07D273/00 , C07D295/00
CPC分类号： C09B62/0025 , C09B19/02
摘要： Dyestuffs of the formula ##STR1## WHEREIN (R).sub.n represents n substituents R each of which may be independently halogen, lower alkyl, lower alkoxy or COOHR.sup.1 is H, optionally substituted lower alkyl, optionally substituted aryl or optionally substituted aralkyl,n is 0-3,(a+b) is 0-4,X is O, S or NR.sup.2, where R.sup.2 is H or optionally substituted lower alkyl,Y is an optionally substituted aliphatic or optionally substituted araliphatic linking group, andEach Z is independently a H or a cellulose-reactive group, and when (a+b) is O there is at least one SO.sub.3 H group as substituent on the groups R.sup.1, X or Y.The dyestuffs when both Z are H are valuable acid dyes, e.g. for wool, and when one or both Z are reactive groups the dyestuffs are valuable reactive dyestuff especially for cellulose fibers.
摘要翻译：下式的染料n表示n个取代基R，其各自独立地为卤素，低级烷基，低级烷氧基或COOH R 1为H，任选取代的低级烷基，任选取代的芳基或任选取代的芳烷基，N IS 0-3，（A + B）IS 0-4，X为O，S或NR2，其中R2为H或任选取代的低级烷基，Y为任选取代的脂族或任选取代的芳脂族连接基团，EACH Z独立地为 H或纤维素反应性基团，当（a + b）为O时，在基团R 1，X或Y上存在至少一个SO 3 H基团作为取代基。

3. 发明授权

US5684101A Free radical polymerisation process 失效
标题翻译：自由基聚合过程
公开(公告)号：US5684101A
公开(公告)日：1997-11-04
申请号：US727659
申请日：1996-10-11
申请人： Andrew Victor Graham Muir , John Robert Lawson , David Mark Haddleton
发明人： Andrew Victor Graham Muir , John Robert Lawson , David Mark Haddleton
IPC分类号： C07F5/02 , C08F2/38 , C08F4/12 , C08F4/70
CPC分类号： C07F5/022 , C08F2/38
摘要： Process for the free-radical polymerization of at least one olefinically unsaturated monomer, the polymerization being performed in the presence of a compound for effecting molecular weight control, being a CoII chelate of the following formula: ##STR1## wherein each group X is a divalent group which forms with the two carbon atoms to which it is bonded a pericondensed polycyclic group, being a group having 3 or more carbocyclic rings where the oxime-containing carbocyclic ring has carbon atoms in common with 2 or more of the other rings, the polycyclic group being unsubstituted (apart from the oxime groups) or having at least one hydrocarbyl substituent; and wherein each group Q is independently selected from F, Cl, Br, OH, C.sub.1-12 alkoxy, aryloxy, C.sub.1-12 alkyl and aryl; or two Q groups taken together provide on one or both boron atoms a group --O--(G)--O-- where G is a divalent aryl or alicyclic linking group or an alkylene linking group; or two Q groups taken together on one or both boron atoms provide a 1,5-cyclooctanediyl linking group; or being a CoIII analogue of the cobalt II chelate in which the Co atom is additionally covalently bonded to H, a halide or other anion, or a homolytically dissociable organic group. Novel Co chelates for use in the process are also disclosed.
摘要翻译： PCT No.PCT / GB95 / 00577 Sec。 371日期：1996年10月11日 102（e）日期1996年10月11日PCT 1995年3月17日PCT公布。出版物WO95 / 27737 日期1995年10月19日至少一种烯属不饱和单体的自由基聚合的方法，该聚合是在用于进行分子量控制的化合物存在下进行的，作为下式的CoII螯合物：其中每个基团X是与其键合的两个碳原子形成的二价基团，它是具有3个或更多个碳环的基团，其中含肟的碳环具有与2个或更多个碳原子共同的碳原子其他环，多环基团是未取代的（除了肟基团）或具有至少一个烃基取代基; 并且其中每个基团Q独立地选自F，Cl，Br，OH，C 1-12烷氧基，芳氧基，C 1-12烷基和芳基; 或两个Q基团在一个或两个硼原子上提供基团-O-（G）-O-，其中G是二价芳基或脂环连接基团或亚烷基连接基团; 或一个或两个硼原子一起取代的两个Q基团提供1,5-环辛二基连接基团; 或者是钴II螯合物的CoIII类似物，其中Co原子另外共价键合到H，卤化物或其它阴离子，或者是均质解离的有机基团。还公开了用于该方法的新型Co螯合物。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式