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Применить Всего найдено 2. Отображено 2.
11-04-1998 дата публикации

Pressure sensitive structural adhesives and sealants based on telechelic/heterotelechelic polymers with dual cure systems

Номер: TW0000329430B
Автор: DAVID JOHN ST 6XCLAIR, JAMES ROBERT ERICKSON, DAVID JOHN ST`6XCLAIR
Принадлежит: SHELL INT RESEARCH, SHELL INTERNATIONAL RESEARCHMAATSCHAPPIJ B.V.

A pressure sensitive structural adhesive and sealant composition comprising: (a) a polymer component comprising from 95 to 15 percent by weight of a telechelic polymer and from 5 to 85 percent by weight of a heterotelechelic polymer, in which at least one of the functional groups on the heterotelechelic polymer is the same as the functional group on the telechelic polymer, in which the telechelic and heterotelechelic polymers contain hydroxyl functional groups and the other functional group on the heterotelechelic polymer is selected from the group consisting of olefinic epoxy groups, glycidyl ether epoxy groups, C=C unsaturation, and acrylic unsaturation, in which the telechelic polymer is a diol or polyol of at least one conjugated diene of the formula (formula) in which A and B are polymer blocks which may be homopolymer blocks of conjugated diolefin monomers, copolymer blocks of conjugated diolefin monomers, or copolymer blocks of conjugated diolefin monomers and monoalkenyl aromatic ...

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Номер записи: 1
01-12-1998 дата публикации

Epoxidized monohydroxylated rubber toughening modifiers for epoxy resins

Номер: TW0000346498B
Автор: MICHAEL ALAN MASSE, DAVID JOHN ST 6XCLAIR, JAMES ROBERT ERICKSON, DAVID JOHN ST`6XCLAIR
Принадлежит: SHELL INT RESEARCH, SHELL INTERNATIONAL RESEARCHMAATSCHAPPIJ B.V.

A toughened cycloaliphatic epoxy resin composition comprising: (a) a curable aromatic or cycloaliphatic epoxy resin; (b) an monohydroxylated epoxidized polydiene polymer which comprises of at least two polymerizable ethenically unsaturated hydrocarbon monomers in which at least one is a diene monomer which yields unsaturation suitable for epoxidation, and in which the polymer contains from 0.5 to 7 milliequivalents of epoxy per gram of polymer; and (c) a curing agent; in which the monohydroxylated epoxidized polydiene polymer, prior to epoxidization, has the following structure: (HO)x-A-Sz-B(OH)y or (HO)x-A-B-S(OH)y in which A and B are polymer blocks which may be homopolymer blocks of conjugated diolefin monomers, copolymer blocks of conjugated diolefin monomers, or copolymer blocks of diolefin monomers and monoalkenyl aromatic hydrocarbon monomers, S is a vinyl aromatic hydrocarbon block, x and y are 0 or 1 and either x or y must be 1 but only one at a time can be 1, and z is 0 or 1.

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Номер записи: 2