Abstract:
Presently described are curable compositions comprising a mixture of at least one (e.g. free-radically) polymerizable ionic liquid and at least one other ethylenically unsaturated monomer, oligomer, or polymer. The polymerizable ionic liquid is characterized as having an air to nitrogen curing exotherm ratio of at least 0.70. Also described are articles and methods of making articles from such curable compositions. A monofunctional polymerizable ionic liquid is also described comprising a non-polymerizable substituted imidazolium cationic group and a polymerizable sulfonate anion.
Abstract:
A method of bonding at least two articles together, the method includes forming a mold, wherein the mold is formed at least in part from the articles; and depositing a curable composition in the mold, wherein the curable composition polymerizes through metathesis polymerization to form a molded polymer joint that bonds the two articles together; and the article formed thereby. An article that includes a first portion; a second portion; and a molded polymer joint, wherein the molded polymer joint bonds the first portion to the second portion, the molded polymer joint has a thickness of at least about 1.3 mm, the molded polymer joint includes a metathesis polymer, and both the first and second portions have different compositions than the molded polymer joint.
Abstract:
Methods of joining pipe section and joined pipe assemblies are described. The pipe sections, e.g., pipes and couplers, are joined by a mechanical interference bond formed using a shape memory polymer key. The key can be inserted into a first keyway of one pipe section, the pipes fitted to align first keyway with a second keyway of the second pipe section, and the shape memory polymer activated to at least partially fill both keyways.
Abstract:
Presently described are curable compositions comprising a mixture of at least one (e.g. free-radically) polymerizable ionic liquid and at least one other ethylenically unsaturated monomer, oligomer, or polymer. The polymerizable ionic liquid is characterized as having an air to nitrogen curing exotherm ratio of at least 0.70. Also described are articles and methods of making articles from such curable compositions. A monofunctional polymerizable ionic liquid is also described comprising a non-polymerizable substituted imidazolium cationic group and a polymerizable sulfonate anion.
Abstract:
Fasteners for producing double blind joints where the fastener is not visible or accessible are provided. The fasteners comprise a shape memory polymer that may be used to fasten workpieces by heating the fasteners, inducing recovery of the original, permanent shape of the fasteners
Abstract:
A phosphorus-containing silsesquioxane is represented by the formula [R13SiO1/2]m[R2SiO3/2]n[R3SiO3/2]p[(R4O)2PO(CH2)xSiO3/2]q wherein each of R1, R2, R3, and R4 independently represents a hydrocarbyl group; x represents an integer of from 1 to 8; m is a positive number less than 1.5; n and q are positive numbers greater than 0 and less than 1; and p is a number greater than or equal to 0 and less than 1. Further, (n+p)/q is in a range of from 0.5 to 99, and (n+p+q)=1. Curable and cured compositions comprising the phosphorus-containing silsesquioxane are disclosed.
Abstract translation:含磷的倍半硅氧烷由式[R13SiO1 / 2] m [R2SiO3 / 2] n [R3SiO3 / 2] p [(R4O)2PO(CH2)xSiO3 / 2] q表示,其中R1,R2,R3, 并且R 4独立地表示烃基; x表示1〜8的整数, m是小于1.5的正数; n和q是大于0且小于1的正数; 并且p是大于或等于0且小于1的数字。此外,(n + p)/ q在0.5至99的范围内,并且(n + p + q)= 1。 公开了包含含磷倍半硅氧烷的可固化和固化的组合物。