Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
281 words
A radiation-crosslinkable organopolysiloxane composition for preparing adhesive-repellent coatings containing an organopolysiloxane in which at least 95 mole percent of the siloxane units are those of the formulas HR.sup.1 C═CR.sup.2 COOR.sup.3 R.sub.2 SiO.sub.1/2, HSR.sup.4 SiRO and R.sup.5.sub.2 SiO in which R is selected from the group consisting of a monovalent hydrocarbon radical and a halogenated monovalent hydrocarbon radical, R 1 is selected from the group consisting of hydrogen and a halogenated phenyl radical, R 2 is selected from the group consisting of hydrogen and an alkyl radical having from 1 to 4 carbon atoms per radical, and R 3 is selected from the group consisting of a divalent hydrocarbon radical and a halogenated divalent hydrocarbon radical, R 4 is a divalent hydrocarbon radical, R 5 is selected from the group consisting of R and a hydrocarbon radical which is substituted by a group of the formula HR 1 C═CR 2 COO--, in which R 1 and R 2 are the same as above and at least 95 percent of the silicon-bonded oxygen atoms in the siloxane units having the HS group are present in the .tbd.SiOSi.tbd. group, and at least one organopolysiloxane having units selected from the group consisting of the formulas (i) R 6 3 SiO 1/2 and R 6 SiO 3/2 , (ii) R 6 3 SiO 1/2 and SiO 4/2 , (iii) R 6 3 SiO 1/2 , R 6 SiO 3/2 and SiO 4/2 , and (iv) mixtures thereof, in which 0.5 to 50 percent of the R 6 radicals are those of the formula HSR.sup.4 -- where R 4 is the same as above, and the remaining R 6 radicals are the same as R 5 .
Claim 2
Dependent Claim
281 words
A radiation-crosslinkable organopolysiloxane composition for preparing adhesive-repellent coatings containing an organopolysiloxane in which at least 95 mole percent of the siloxane units are those of the formulas HR.sup.1 C═CR.sup.2 COOR.sup.3 R.sub.2 SiO.sub.1/2, HSR.sup.4 SiRO and R.sup.5.sub.2 SiO in which R is selected from the group consisting of a monovalent hydrocarbon radical and a halogenated monovalent hydrocarbon radical, R 1 is selected from the group consisting of hydrogen and a halogenated phenyl radical, R 2 is selected from the group consisting of hydrogen and an alkyl radical having from 1 to 4 carbon atoms per radical, and R 3 is selected from the group consisting of a divalent hydrocarbon radical and a halogenated divalent hydrocarbon radical, R 4 is a divalent hydrocarbon radical, R 5 is selected from the group consisting of R and a hydrocarbon radical which is substituted by a group of the formula HR 1 C═CR 2 COO--, in which R 1 and R 2 are the same as above and at least 95 percent of the silicon-bonded oxygen atoms in the siloxane units having the HS group are present in the .tbd.SiOSi.tbd. group, and at least one organopolysiloxane having units selected from the group consisting of the formulas (i) R 6 3 SiO 1/2 and R 6 SiO 3/2 , (ii) R 6 3 SiO 1/2 and SiO 4/2 , (iii) R 6 3 SiO 1/2 , R 6 SiO 3/2 and SiO 4/2 , and (iv) mixtures thereof, in which 0.5 to 50 percent of the R 6 radicals are those of the formula HSR.sup.4 -- where R 4 is the same as above, and the remaining R 6 radicals are the same as R 5 .
Claim 3
Dependent Claim
31 words
The composition of claim 1, wherein from 1 to 10 percent of the R 6 radicals are radicals of the formula HSR.sup.4 --, where R 4 is a divalent hydrocarbon radical.
Claim 4
Dependent Claim
224 words
The composition of claims 1 or 2, wherein 10 to 500 units of the formula R.sup.6.sub.3 SiO.sub.1/2 and a total of 10 to 500 units of the formulas R.sup.6 SiO.sub.3/2 and SiO.sub.4/2 are present in the organopolysiloxanes obtaind from units selected from the group consisting of the formulas (i) R 6 3 SiO 1/2 and R 6 SiO 3/2 (ii) R 6 3 SiO 1/2 and SiO 4/2 (iii) R 6 3 SiO 1/2 , R 6 SiO 3/2 and SiO 4/2 and (iv) mixtures thereof, and the ratio of the units of the formula R.sup.6.sub.3 SiO.sub.1/2 to the total number of units of the formulas R.sup.6 SiO.sub.3/2 and SiO.sub.4/2 is 100:1 to 1:10, where R 6 is selected from the group consisting of a radical of the formula HSR.sup.4 -- and R.sup.5, where R 4 is a divalent hydrocarbon radical and R 5 is selected from the group consisting of R and a radical which is substituted by a group of the formula HR.sup.1 C═CR.sup.2 COO--, where R is selected from the group consisting of a monovalent hydrocarbon radical and a halogenated monovalent hydrocarbon radical, R 1 is selected from the group consisting of hydrogen, a halogenated phenyl radical and R 2 is selected from the group consisting of hydrogen and an alkyl radical having from 1 to 4 carbon atoms per molecule.