摘要:
This invention relates to the paint composition having a unique paint vehicle, the paint vehicle comprises a latex comprising copolymer resin particles having at least 25% vinyl acetate polymerized therein, and the polymerized resin particles containing from about 0.1-10% by weight of a diallylic urea compound therein for providing wet adhesion characteristics to the paint composition.
摘要:
Novel compounds of the general formula ##STR1## (m = 0 or 1; n = 2 or 3 and R = H or CH.sub.3) are produced by reacting a 2-aminoalkyl alkylene urea with an allyl ester of a carbonylic acid. Among the particular allyl esters disclosed as reactants are diallyl carbonate, allyl and methallyl chloroformate, diallyl and dimethallyl oxalate. The recovered allyl esters of the alkyleneureido amic acid compounds find particular use as functional comonomers for imparting wet adhesion properties to emulsion systems containing vinyl ester polymers used in paints and coating compositions.
摘要:
Polycarbonates, of the type formed by reacting an aliphatic or cycloaliphatic 1,2-monoepoxide with carbon dioxide and having substantially alternating units of epoxide and carbon dioxide, are improved in thermal stability by reacting the free hydroxyl groups thereon with a hydroxyl reactive sulfur compound.The resulting end capped polycarbonates are useful for producing molded products, films, and packages which are resistant to thermal degradation.
摘要:
The present invention relates to surface modification of synthetic resin fiber form materials, notably polyolefin and polyacrylonitrile fiber form materials whose surface has been modified by treatment with elemental fluorine, and to the fluorination process.
摘要:
A compound represented by the following formula: ##STR1## wherein R is a C.sub.3 -C.sub.24 olefinically unsaturated organic radical having functionality which renders the nitrogen atom electron deficient, the olefinic unsaturation functionality being polymerizable,R.sup.1 is hydrogen or a C.sub.1 -C.sub.4 alkyl radical, orR and R.sup.1 together with the nitrogen atom can form an olefinically unsaturated 5 to 7-member ring which has functionality that renders the nitrogen atom electron deficient and the olefinic unsaturation functionality is polymerizable,R.sup.2 and R.sup.3 are hydrogen, a C.sub.1 -C.sub.4 alkyl or acyl radical, orR.sup.2 and R.sup.3 together are a C.sub.2 -C.sub.4 alkylene group,R.sup.4 is hydrogen or a C.sub.1 -C.sub.4 alkyl, acyl, ester, amide or acid group, andn is an integer from 1 to 10, provided n is not 1 when R is (meth)acryloyl, R.sup.2 and R.sup.3 are methyl and R.sup.1 and R.sup.4 are hydrogen.Under acidic conditions the above compounds in which R.sup.1 is hydrogen afford cyclic hemiamidals and hemiamide ketals of the following formula: ##STR2## The dialkyl acetal and ketal compounds and the cyclic hemiamidal and hemiamide ketal compounds can be homopolymerized or polymerized with other copolymerizable monomers.
摘要:
This invention relates to a process for producing ring alkylated aromatic amines where the alkyl substituent is ortho to the amino group by reacting an N-alkylated aromatic amine with a C.sub.2-10 olefin in the presence of a solid phase acidic catalyst, e.g., silica-alumina or a zeolite. High conversion and selectivity is achieved by maintaining a mole ratio of olefin to amine of from about 1-10:1 and an operating pressure of at least 50 psig.
摘要:
This invention relates to a process for producing mono-ortho-ethyl- aniline in high selectivity and at high conversion using a silica-alumina catalyst. The reaction is carried out using a fixed bed reactor. Diethylaniline derivatives are avoided by maintaining preselected mole ratios of ethylene to aniline, preselected temperatures and preselected reaction times.
摘要:
This invention relates to a process for producing mono-ortho-tert-butyl-aniline in high security selectivity and at high conversion using a silica-containing catalyst. The reaction is carried out using a fixed bed reactor. Di-tert-butyl derivatives are avoided by maintaining preselected mole ratios of isobutylene to aniline, preselected temperatures and preselected reaction times.
摘要:
A compound represented by the following formula: ##STR1## wherein R is a C.sub.3 -C.sub.24 olefinically unsaturated organic radical having functionality which renders the nitrogen atom electron deficient, the olefinic unsaturation functionality being polymerizable,R.sup.1 is hydrogen or a C.sub.1 -C.sub.4 alkyl radical, orR and R.sup.1 together with the nitrogen atom can form an olefinically unsaturated 5 to 7-member ring which has functionality that renders the nitrogen atom electron deficient and the olefinic unsaturation functionality is polymerizable,R.sup.2 and R.sup.3 are hydrogen, a C.sub.1 -C.sub.4 alkyl or acyl radical, orR.sup.2 and R.sup.3 together are a C.sub.1 -C.sub.4 alkylene group,R.sup.4 is hydrogen or a C.sub.1 -C.sub.4 alkyl, acyl, ester, amide or acid group, andn is an integer from 1 to 10, provided n is not 1 when R is (meth)acryloyl, R.sup.2 and R.sup.3 are methyl and R.sup.1 and R.sup.4 are hydrogen.