摘要:
The present invention provides a radiation curable vinyl-silicone pressure-sensitive adhesive composition which combines the advantages of silicone and acrylate pressure-sensitive adhesives and which does not experience gross phase separation problems. The composition comprises at least about 20 weight percent of a certain telechelic silicone polymer, about 0.5 to about 80 weight percent of monofunctional free-radically polymerizable vinyl monomer copolymerizable with the silicone polymer, and a sufficient amount of a silicate MQ tackifying resin to impart a degree of adhesive tack to the cured composition at the use temperature, wherein the weight percentages of the silicone polymer and the monomer are based upon the total weight of the silicone polymer and monomer.
摘要:
A composition which is curable to an elastomer comprising:A polymer or mixture of polymers of the formula ##STR1## wherein: X are monovalent moieties having ethylenic unsaturation which can be the same or different;Y are divalent linking groups which can be the same or different;m is an integer of 0 to 1;D are monovalent moieties which can be the same or different selected from the group consisting of hydrogen, an alkyl group of 1 to about 10 carbon atoms, aryl, and substituted aryl;R are divalent hydrocarbon groups which can be the same or different;R.sup.1 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl;R.sup.2 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl;R.sup.3 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, vinyl, aryl, and substituted aryl;R.sup.4 are monovalent moieties which can be the same or different selenited from the group consisting of alkyl, substituted alkyl, vinyl, aryl, and substituted aryl; andn is an integer of about 270 to about 1000.A composition which is curable to a pressure sensitive adhesive comprising the above polymer and a sufficient amount of tackifier. The invention also relates to fluorosilane compounds useful in the preparation of silicone macromonomer, their preparation and the preparation of silicone macromonomer.
摘要:
A composition which is curable to an elastomer comprising:A polymer or mixture of polymers of the formula ##STR1## wherein: X are monovalent moieties having ethylenic unsaturation which can be the same or different;Y are divalent linking groups which can be the same or different;m is an integer of 0 to 1;D are monovalent moieties which can be the same or different selected from the group consisting of hydrogen, an alkyl group of 1 to about 10 carbon atoms, aryl, and substituted aryl;R are divalent hydrocarbon groups which can be the same or different;R.sup.1 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl;R.sup.2 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl;R.sup.3 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, vinyl, aryl, and substituted aryl;R.sup.4 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, vinyl, aryl, and substituted aryl; andn is an integer of about 270 to about 1000.A composition which is curable to a pressure sensitive adhesive comprising the above polymer and a sufficient amount of tackifier. Thhe invention also relates to fluorosilane compounds useful in the preparation of silicone macromonomer, their preparation and the preparation of silicone macromonomer.
摘要:
The present invention provides an acrylate/silicone pressure-sensitive adhesive tape having improved adhesion to painted surfaces and low temperature performance. The pressure-sensitive adhesive tape comprises:(a) a pressure-sensitive adhesive layer comprising a polymerized pressure sensitive adhesive composition wherein said pressure sensitive adhesive composition comprises:(I) about 25 to about 99 weight percent of polymer of the formula ##STR1## wherein: X, Y, D, R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, and n are defined in the specification;(II) about 1 to about 75 weight percent free radically polymerizable vinyl monomer which is capable of copolymerizing with the polymer wherein said free radically polymerizable monomer comprises:(i) about 5 to about 100 parts by weight of an acidic monomer selected from the group consisting of methacrylic acid, acrylic acid, and mixtures thereof;(ii) about 0 to about 95 parts by weight of an acrylate monomer selected from the group consisting of esters of acrylic acid comprising 4 to 21 carbon atoms and esters of methacrylic acid comprising 5 to 21 carbon atoms and mixtures thereof; based upon 100 parts total by weight of said free radically polymerizable monomer; wherein the weight percentages set forth in elements,(I) and (II) are based upon the total weight of the polymer of element (I) plus the monomer of element (II); and(III) a sufficient amount of a silicate MQ tackifying resin to impart a degree of adhesive tack to the cured composition at the use temperature; and(b) a foam layer which is coated on at least one side with the adhesive layer.The present invention also provides the pressure sensitive adhesive composition and pressure sensitive adhesive.
摘要:
The present invention provides an acrylate/silicone pressure-sensitive adhesive tape having a foam backing having improved adhesion to painted surfaces and low temperature performance.
摘要:
The invention relates to a radiation curable release coating composition comprising:(a) from about 0.05 to about 25 percent by weight of polymer selected from the group consisting of polymers falling within the general formula: ##STR1## and mixtures thereof, wherein: X are monovalent moieties having ethylenic unsaturation which can be the same or different;Y are divalent linking groups which can be the same or different;D are monovalent moieties which can be the same or different selected from the group consisting of hydrogen, an alkyl group of 1 to about 10 carbon atoms, aryl, and substituted aryl;R are divalent hydrocarbon groups which can be the same or different;R.sup.1 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl;R.sup.2 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl;R.sup.3 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, vinyl, aryl, and substituted aryl;R.sup.4 are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, vinyl, aryl, and substituted aryl; andn is an integer of about 25 to about 750;(b) from about 5 to about 60 percent by weight of one or more free radically polymerizable multifunctional vinyl monomers copolymerizable with said polymer; and(c) from about 25 to about 95 percent by weight of one or more free radically polymerizable monofunctional vinyl monomers copolymerizable with said polymer;wherein said weight percentages are based upon the total weight of the radiation curable release coating composition.The invention also relates to substrates coated with the release coating.
摘要:
A method of modifying light is disclosed and includes: providing an optical element having an oriented polymer network of a silicone (meth)acrylate copolymer and exhibiting a first phase and a second phase, the first phase and the second phase being chemically connected and having different refractive indices, the first phase being continuous, and the second phase comprising a plurality of structures dispersed within the first phase; illuminating the optical element with light from a light source; and detecting polarized or directionally diffused light transmitted by the optical element. Optical elements including the polymer network and a variety of additional layers are also disclosed, as are optical devices such as prisms, display panels, lenses, and the like.
摘要:
A composition which is curable to an elastomer comprising:A polymer or mixture of polymers of the formula ##STR1## A composition which is curable to a pressure sensitive adhesive comprising the above polymer and a sufficient amount of tackifier. The invention also relates to fluorosilane compounds useful in the preparation of silicone macromonomer, their preparation and the preparation of silicone macromonomer.
摘要:
A method of modifying light is disclosed and includes: providing an optical element having an oriented polymer network of a silicone (meth)acrylate copolymer and exhibiting a first phase and a second phase, the first phase and the second phase being chemically connected and having different refractive indices, the first phase being continuous, and the second phase comprising a plurality of structures dispersed within the first phase; illuminating the optical element with light from a light source; and detecting polarized or directionally diffused light transmitted by the optical element. Optical elements including the polymer network and a variety of additional layers are also disclosed, as are optical devices such as prisms, display panels, lenses, and the like.
摘要:
A method of modifying light is disclosed and includes: providing an optical element having an oriented polymer network of a silicone(meth)acrylate copolymer and exhibiting a first phase and a second phase, the first phase and the second phase being chemically connected and having different refractive indices, the first phase being continuous, and the second phase comprising a plurality of structures dispersed within the first phase; illuminating the optical element with light from a light source; and detecting polarized or directionally diffused light transmitted by the optical element. Optical elements including the polymer network and a variety of additional layers are also disclosed, as are optical devices such as prisms, display panels, lenses, and the like.