摘要:
The present invention relates to novel bisbenzophenones and the use thereof as an ultraviolet light absorber. The presently claimed compounds are particularly useful, either alone or in combination with other additives, including other ultraviolet light absorbers, antioxidants and stabilizers, in stabilizing polymers and other materials from degradation by environmental forces such as actinic radiation (ultraviolet light), oxidation, moisture, atmospheric pollutants and combinations thereof.
摘要:
Oligomeric compounds and methods of making the compounds having the formula: T&Parenopenst;M—F&Parenclosest;i&Parenopenst;M—F′&Parenclosest;jM (III) wherein i and j are integers from about 0 to 300 and the sum of i and j is greater than 2, wherein the units F, F′ and T are derived from one or more multi-functional carbonyl compounds of general structure DO—CO—CRaRb—(—CRcRd—)n—NH—(Y)m—CO—OD (IV) wherein n is an integer from 1 to 15, m is either 0 or 1; Ra, Rb, Rc, and Rd, are each a hydrogen or a hydrocarbyl group; Y is CO—(CReRf)p, wherein Re and Rf are each a hydrogen or hydrocarbyl group and p is zero or an integer from 1 to 20 or CO—C6H4—, D is a hydrocarbyl group, and M is a moiety derived from one or more diamino or dihydroxy compounds that contain a 4-aminopiperidine radical.
摘要翻译:低聚化合物和制备具有下式的化合物的方法:其中i和j为约0至300的整数,i和j的和大于2,其中单元F,F'和T衍生自一个或多个 一般结构的多官能羰基化合物,其中n为1至15的整数,m为0或1; Ra,Rb,Rc和Rd各自为氢或烃基; Y是CO-(CReRf)p,其中Re和Rf各自为氢或烃基,p为0或1至20的整数或CO-C 6 H 4 - ,D为烃基,M为衍生自 一种或多种含有4-氨基哌啶基团的二氨基或二羟基化合物。
摘要:
Oligomeric compounds and methods of making the compound having the formula: wherein i, j, k, and l are integers from about 0 to 300 and the sum of i, j, k, and l is greater than 2, wherein the units F, F′ and T are derived from one or more multi-functional carbonyl compounds of general structure DO—CO—CRaRb—(—CRcCRd—)n—NH—(Y)m—CO—OD (IV) wherein n is an integer from 1 to 15, m is either 0 or 1; Ra, Rb, Rc, and Rd, are each a hydrogen or a hydrocarbyl group; Y is CO—(CReRf)p, wherein Re and Rf are each a hydrogen or hydrocarbyl group and p is zero or an integer from 1 to 20 or CO—C6H4—, wherein the substitution pattern on the phenylene group is an ortho, meta, or para substitution pattern, and one or more of the hydrogens of the phenylene group may be substituted by a hydrocarbyl group or a functional group; and D is a hydrocarbyl group and the units E, E′ and S are derived from one or more 1-substituted piperidin-4-ol or 4-aminopiperidines of general structure wherein Z is OH or NHG, wherein G is H or C1-C12 alkyl, R1 is —(CH2)s—OH or —(CH2)s—NH2, wherein s is an integer from 1 to 10; R2 represents hydrogen, C1-C8 alkyl, or benzyl; R3, R4, R5, and R6 are each a hydrogen, C1-C8 alkyl, benzyl or phenethyl, or two geminal R moieties, which together with the carbon to which they are attached form a C5-C10 cycloalkyl. The compounds are useful for stabilizing polymer compositions against photo- and thermal degradation.
摘要:
Novel mono- and bis-benzothiazole sulfenamide compounds based on primary amines are provided which may be employed as rubber vulcanization accelerators having excellent scorch safety. Vulcanizable rubber compositions containing rubber, sulfur and the novel benzothiazole sulfenamide compounds are also provided.