摘要:
A water-soluble or water-dispersible pressure sensitive adhesive is provided comprised of a normally-tacky copolymer of a water-soluble base monomer and a water-soluble or water-dispersible macromer. In a preferred embodiment, the water-soluble base monomer comprises a carboxylic hydroxyalkyl ester monomer and the water-soluble macromer comprises an ethoxylated or propoxylated hydroxyalkyl(meth)acrylate.
摘要:
The invention relates to a composition containing an activator system for polymerisations and a radical polymerisable compound of the general formula (II): [H2C=CR -C(=O)-O-R -O-C(=O)-NH-Q-NH-C(=O)]2[{-O-R -O-C(=O)-NH-Q'-NH-C(=O)}m-O-R -O-] in which m is 0 to 10, R is hydrogen or a methyl group, R is a linear or branched alkyl group with 2 to 6 carbon atoms or an alkylene oxide with 4 to 21 carbon atoms, Q and Q' are mutually independently aromatic, aliphatic or cycloaliphatic groups containing 6 to 18 carbon atoms derived from the basic diisocyanate or diisocyanate mixtures, and R is derived from a polyester diole with a C:O ratio of > 2.6, a C:H ratio of
摘要:
There is provided a pressure-sensitive adhesive graft copolymer formed by reacting an acrylic monomer system comprising at least one alkyl acrylate ester containing from about 4 to about 8 carbon atoms in the alkyl group in the presence of a macromer selected from the group consisting of ethylene-butylene and ethylene-propylene macromers and mixtures thereof with each of said macromer having a molecular weight of from about 2,000 to about 30,000, a glass transition temperature of less than about 0 DEG C and a terminal reactive group of acrylate or methacrylate.
摘要:
An adhesive composition includes a first acrylic polymer preparable from first components and a second acrylic polymer. The first components comprising i) a branched first alkyl (meth)acrylate having from 4 to 22 carbon atoms, and ii) at least one of acrylic acid and methacrylic acid. The second acrylic polymer is preparable from second components comprising iii) at least one second alkyl (meth)acrylate having from 4 to 22 carbon atoms, iv) a (meth)acrylamide represented by formula (I) wherein R 1 is H or methyl, and R 2 and R 3 each independently represents H or an alkyl group having from 1 to 8 carbon atoms, or taken together R 2 and R 3 may form a divalent alkylene group having from 4 to 6 carbon atoms, and v) at least one high T g macromer having a terminal free-radically polymerizable unsaturated group, the high T g macromer having a T g of at least 45°C. Based on the combined total weight of the at least one first acrylic polymer and the at least one second acrylic polymer, the at least one second acrylic polymer is present at a level of from 5 to 40 percent by weight. Methods of making the adhesive composition are also disclosed.
摘要:
The present invention is a copolymer of a monomer mixture including about 25 to about 80 parts by mass of an alkyl (meth)acrylate, approximately 15 to approximately 50 parts by mass of a hydroxyl group-containing monomer, and approximately 5 to approximately 25 parts by mass of a macromer having a glass transition temperature (Tg) of approximately 50°C or higher. The copolymer contains substantially no acidic groups.
摘要:
Pressure sensitive adhesive formulations of an acrylic polymer grafted with a hydrogenated rubber. In one embodiment, the polymer contains a hydroxyalkyl (meth)acrylate ester which is crosslinked with a titanium-containing chelated metal alkoxide. The adhesive formulations provide an exceptional combination of adhesion to low energy surfaces and high temperature cohesive strength.
摘要:
The invention relates to an adhesive for the production of composite glass, consisting of reactive acrylate and methacrylate monomers, acrylate and methacrylate-functional oligomers, filling materials, adhesion promoters, photoinitiators and optionally non-reactive acrylate and methacrylate homopolymers and copolymers, softeners, tackifying additives and stabilizers and exhibiting a viscosity ranging from 5 to 300 Pa*s and a flow point ranging from 5 to 800 Pa at 23 DEG C. The invention also relates to the production of the adhesive according to the invention and the use of said adhesive.
摘要:
A latex antistatic adhesive comprising an emulsion of polymerized microdrops dispersed in an aqueous medium, having an average diameter less than 0.1 mu m, and a glass transition temperature (Tg) of from -120 DEG C to 25 DEG C, wherein the polymerized microdrops are derived from emulsion microdrops of reactive monomers, said adhesive including at least one (meth)acrylic monomer, at least one polar monomer, at least one reactive oligomer and at least 1 % of a lithium salt.
摘要:
A transdermal drug delivery device involving a macromonomer-containing acrylate or methacrylate copolymer, a softener, and a drug. Also a pressure sensitive skin adhesive involving a macromonomer containing acrylate or methacrylate copolymer and a softener.