Sumitomo Chemical Company, Limited

Yoshikazu Fujii

Kazuhiko Hata

Masaaki Hirooka

Shuichi Kanagawa

Kentaro Mashita

Hideo Shinonaga

Kaoru Kitadono

Fumiyuki Kimura

Tomizou Kondo

Shigeru Morita

Isamu Namazue

A process for applying a light- or radiation-curable resin composition onto a polyolefin molding comprising surface treating a molding of polyolefin composition composed of 99.99 to 0 wt % of a polyolefin and 0.01 to 100 wt % of an olefinic polymeric compound having polar groups represented by the formula, --OCOR, ##STR1## wherein R and R' are each a hydrogen atom or a hydrocarbon group having 1 to 8 carbon atoms, by at least one pretreatment method selected from the group consisting of a treatment with a halogenated hydrocarbon solvent, a low temperature plasma treatment, a corona discharge treatment, a flame treatment and an alkali degreasing treatment, and applying onto the thus treated molding surface a light- or radiation-curable resin composition, is disclosed.

Process for applying light- or radiation-curable resin composition to

A compound of the formula (1), ##STR1## WHEREIN R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 are individually a hydrogen atom or a C.sub.1 -C.sub.20 alkyl group, A is a hydrocarbon residue, and n is an integer of 2 or 3, provided that when R.sub.1 is a methyl group and each of R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and R.sub.7 is a hydrogen atom, the isopropenyl group ##STR2## is substituted at o- or m-position to the oxycarbonyl group ##STR3## which is useful as a crosslinking plasticizer for rubber.

Novel aromatic polyvinyl compounds

A method for treating a leather, characterized by treating a leather with a polymer [II] obtained by polymerizing 5 to 2,000 parts by weight of at least one member selected from the group consisting of acrylic esters and methacrylic esters in which the alcohol moiety is a hydrocarbon- or halohydrocarbon-group having 1 to 20 carbon atoms, and 500 parts by weight or less of at least one vinyl compound having the formula: ##STR1## wherein R.sup.I and R.sup.II are independently a hydrogen atom, a halogen atom, a hydrocarbon- or halohydrocarbon-group having 1 to 8 carbon atoms, or Y; Y is a group having 1 to 20 carbon atoms and having a group selected from the group consisting of a carboxyl group, acid halide groups, a hydroxyl group, ether groups, and oxygen-containing cyclic compound residues; R.sup.III is an oxygen atom or &gt;N-R.sup.IV wherein R.sup.IV is a hydrogen atom or a hydrocarbon- or halohydrocarbon-group having 1 to 8 carbon atoms, in the presence of 100 parts by weight of a copolymer [I] comprising as essential components at least one monoethylenically unsaturated ester compound having 4 to 22 carbon atoms, at least one member selected from the group consisting of monoethylenically unsaturated hydrocarbon compounds having 2 to 20 carbon atoms and halogen-substituted derivatives thereof and, if necessary, at least one diene or polyene compound. The thus treated leather causes no color bleed, has no tackiness, and has a coating film high in strength and impact resistance.

Method for treating leather

A method for bonding solid materials by use of a copolymer comprising at least one olefin having 3 to 20 carbon atoms and at least one acrylic ester compound containing an alcohol residue having 1 to 20 carbon atoms and at least one functional ethylenically unsaturated compound from among acryloyl halides or maleic anhydride.

Bonding method using olefin-acrylic ester copolymer

Novel alternating copolymers having functional groups are prepared by subjecting to alternating copolymerization at least one olefin, at least one acrylic ester and at least one .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid or its derivative represented by the formula: ##EQU1## wherein Y and Z are independently --O--, --S--, or --NR.sup.3 --, and R.sup.1, R.sup.2 and R.sup.3 are independently hydrogen or hydrocarbon groups having 1 to 20 carbon atoms. Said alternating copolymer consists essentially of a structure in which said olefin is bonded to only said acrylic ester or said .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid or its derivative, and said acrylic ester and said .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid or its derivative are bonded to only said olefin, and has a sufficiently high molecular weight.

Growing community of inventors

Ibaragi, Japan

Yoshikazu Fujii