摘要:
The present invention provides polymers resulting from modification of polymeric moieties containing an anhydride with modifying reactant moieties. The invention further provides a wide variety of compositions comprising the and modified polymeric moieties containing an anhydride. The letters b, d, e, and z are described herein.
摘要:
The invention relates to novel polymers derived from: (A) at least one N-vinyl amide-based unit and/or at least one acrylamide-based unit, and (B) at least one unit comprising: (i) at least one hydroxyl group, and/or (ii) at least one functional group convertible to a hydroxyl group wherein at least one group is converted to hydroxyl functionality in the final polymer product, wherein the polymer comprises at least one ester group. The polymers and compositions are used in oilfield applications, such as an inhibitor of gas hydrates and/or a kinetic inhibitor of gas hydrates. The polymer can assume alternating, block, and/or random configurations of the repeating units, with at least one ester group.
摘要:
UV-absorbing compounds are disclosed that are derived from at least: (a) a UV absorber having at least one hydroxyl group, primary amine group, or secondary amine group, (b) a coupling agent having anhydride functionality, and (c) a graft host comprising an unsaturated fatty acid. These compounds absorb, scatter, deflect, or scatter ultraviolet radiation in a variety of personal care and performance chemical applications. R″ and R″′ are alkyl or alkenyl groups that naturally occur in oil.
摘要:
Polymers are provided that offer gas hydrate inhibition, salt tolerance, and high cloud point. The polymers are polymerized from at least (A) 50 mole percent or more of a monomer selected from the group consisting of: N-vinyl-2-caprolactam, one of its analogues, and combinations thereof, (B) an alkenyl sulfonic acid monomer, salt thereof, or combinations thereof, and (C) an TV-vinyl amide, a (meth)acrylamide or one of its analogues, or combinations thereof. In one embodiment, the (A) monomer is N-vinyl-2-caprolactam, the (B) monomer is 2-acrylamido-2-methylpropane sulfonic acid or salt thereof, and the (C) monomer is N-vinyl-2-pyrrolidone, acrylamide, methacrylamide, or combinations thereof.
摘要:
A cationically polymerizable composition comprising (i) a cationically polymerizable resin, (ii) an onium salt, (iii) an azo or peroxide initiator, exhibits a lower cure temperature upon the addition of (iv) a catalytic or substoichiometric amount of an electron-rich vinyl resin to the reaction.
摘要:
The present invention provides homopolymers resulting from ROMP of oxanorbornene dicarboxylic anhydride moieties and non-homopolymers resulting from ROMP of norbornene dicarboxylic anhydrides and oxanorbornene dicarboxylic anhydrides with co-monomer moieties. The invention further provides hydrogenated homopolymers resulting from ROMP of oxanorbornene dicarboxylic anhydrides and hydrogenated non-homopolymers resulting from ROMP of norbornene dicarboxylic anhydrides and oxanorbornene dicarboxylic anhydrides with co-monomer moieties. The invention further provides a wide variety of compositions comprising the novel ROMP moieties. Some of the novel ROMP moiety structures are set out below, wherein R1, R2, X, n, and m are defined herein.
摘要:
Polymers are provided that are derived from at least (A) N-vinyl formamide, (B) one vinyl amide moiety or one acrylamide moiety, and (C) a reaction solvent. The polymers are random, block, or alternating polymers. A particular useful poly-mer comprises about 20% N-vinyl formamide, about 50% N-vinyl-ε-caprolactam, about 30% N-vinyl-2-pyrrolidone, being synthesized in ethylene glycol. In preferred embodiments, polymers of the invention exhibit a cloud point temperature of 66° C. or more, inhibit the formation of gas hydrates, and/or inhibit corrosion. Especially preferred uses of the polymers are in oilfield operations as gas hydrate inhibitors and/or corrosion inhibitors.
摘要:
This invention relates to oligomeric compounds that are prepared by the reaction of a dianhydride with an amino-alcohol to yield an imide-diol intermediate, which is then esterified with a carboxylic acid to form a reactive oligomer. An exemplary reaction scheme is the following:
摘要:
Curable compositions exhibit improved adhesion and conductivity by the addition of a metal salt of 8-quinolinol or of an 8-quinolinol derivative as an adhesion and/or conductivity promoter. The metal salt of 8-quinolinol or of an 8-quinolinol derivative is formed by coordination with a metal selected from the group consisting of Cu, Be, Mg, Ca, Sr, Ba, Zn, Cd, Al, Ga, In, TI, Yt, La, Pb, Sb, Bi, Cr, Mo, Mn, Fe, Co, Ni, Pd, Ce, and Pr. Examples of quinolinol derivative salts have the structures:
摘要:
Polymeric compounds containing an oxetane functionality and a styrenic functionality have the structure in which polymer is a polymeric backbone from which depend the oxetane and styrenic functionalities; m and n are integers from 2 to 500; R1 is a methyl or ethyl group; R2 and R3 are H or a methyl or ethyl group; R4 is a direct bond or a divalent hydrocarbon; W and Z independently are an ether, ester, amide, or carbamate group; and G is hydrogen, or —OR1, —SR1, or —N(R2)(R3), in which R1, R2 and R3 are as described above.
摘要翻译:含有氧杂环丁烷官能团和苯乙烯官能团的聚合化合物具有其中聚合物是聚合物主链的结构,其取决于氧杂环丁烷和苯乙烯官能团; m和n是2至500的整数; R 1是甲基或乙基; R 2和R 3是H或甲基或乙基; R 4是直接键或二价烃; W和Z独立地是醚,酯,酰胺或氨基甲酸酯基; 或G为氢,或-OR 1,-SR 1或-N(R 2)(R 3) SUP>),其中R 1,R 2和R 3如上所述。