IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0868750
(1978-01-12)
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발명자
/ 주소 |
- Sackoff Martin M. (Glens Falls NY) Smith John R. (Gansevoort NY) Walling Billy E. (Martinez GA)
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| 출원인 / 주소 |
- United Merchants and Manufacturers, Inc. (New York NY 02)
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| 인용정보 |
피인용 횟수 :
79 인용 특허 :
0 |
초록
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A method for making a pressure sensitive adhesive coated laminate is disclosed. The method involves coating a sheet having a release surface thereon with a pressure sensitive adhesive to form a laminate, drying or curing the pressure sensitive adhesive and marrying the laminate to the inner surface
A method for making a pressure sensitive adhesive coated laminate is disclosed. The method involves coating a sheet having a release surface thereon with a pressure sensitive adhesive to form a laminate, drying or curing the pressure sensitive adhesive and marrying the laminate to the inner surface of a facing layer. A material which produces a low zero-minute peel value in the pressure sensitive adhesive layer is intimately mixed with the pressure sensitive adhesive prior to the adhesive being coated on the release surface of the sheet. The resulting laminate can be easily applied to a substrate and removed and repositioned or straightened, if necessary, and provides an increase in peel value over a period of time to produce a more permanent installation. The laminate is suitable for use as decorative and/or protective covering as well as adhesive tapes, labels, and the like.
대표청구항
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A method for making a laminate comprising coating a first sheet having a release surface thereon with a modified pressure sensitive adhesive to form a first laminate, subjecting said first laminate to conditions suitable to dry or cure the pressure sensitive adhesive, and marrying the pressure sensi
A method for making a laminate comprising coating a first sheet having a release surface thereon with a modified pressure sensitive adhesive to form a first laminate, subjecting said first laminate to conditions suitable to dry or cure the pressure sensitive adhesive, and marrying the pressure sensitive adhesive side of the thus treated first laminate to the inner surface of a facing layer having inner and outer surfaces; said modified pressure sensitive adhesive comprising a pressure sensitive adhesive and means for decreasing the “zero minute peel value”of the facing layer-pressure sensitive adhesive layer combination, said means comprising a polysiloxane intimately mixed with the pressure sensitive adhesive, said polysiloxane being formed from monomeric units having structures (I) and (II) as follows: [Figure] (I) and [Figure] (II) wherein R1 is selected from the group consisting of: (i) phenyl; (ii) methyl; (iii) tolyl; [Figure] (iv) wherein R7 and R8 may be the same or different and may be hydrogen, methyl, or ethyl, and wherein when R1 is group (i), (ii), (iii) or (iv), the prime mole percent of structure (I) is from about 0.5 to 50 and the prime mole percent of structure (II) is from about 99.5 to 50, and (v) polyoxyalkylene having the structural formula －R5(OC2H4)n(OC3H6)mOR6 wherein R6 is hydrogen or a monovalent hydrocarbon group having from 1 to 10 carbon atoms, R5 is an alkylene group having at least two carbon atoms, n and m are zero or numbers, the sum of n and m is at least 1 and the oxyalkylene unit R6O(C3H6O)m(C2H4O)n, has a molecular weight of at least about 80, and wherein there are at least two units having structure (I) and at least three units having structure (II) and wherein the oxyalkylene unit constitutes from about 85 to 30 weight percent of the polysiloxane polymer; R2 may be methyl, ethyl, or phenyl; and R3, and R4 may be the same or different and may be methyl or ethyl. A pressure sensitive adhesive composition comprising a mixture of a pressure sensitive adhesive and a polysiloxane, said polysiloxane being formed from monomeric units having structures (I) and (II) as follows: [Figure] (I) and [Figure] (II) wherein R1 is selected from the group consisting of: (i) phenyl; (ii) methyl; (iii) tolyl; [Figure] (iv) wherein R7 and R8 may be the same or different and may be hydrogen, methyl, or ethyl, and wherein when R1 is group (i), (ii), (iii) or (iv), the prime mole percent of structure (I) is from about 0.5 to 50 and the prime mole percent of structure (II) is from about 99.5 to 50, and (v) polyoxyalkylene having the structural formula －R5(OC2H4)n(OC3H6)mOR6 wherein R6 is hydrogen or a monovalent hydrocarbon group having from 1 to 10 carbon atoms, R5 is an alkylene group having at least two carbon atoms, ln and m are zero or numbers, the sum of n and m is at least 1 and the oxYalkylene unit R6O(C3H6O)m(C2H4O)n, has a molecular weight of at least about 80, and wherein there are at least two units having structure (I) and at least three units having structure (II) and wherein the oxyalkylene unit constitutes from about 85 to 30 weight percent of the polysiloxane polymer; R2 may be methyl, ethyl, or phenyl; and R3, and R4 may be the same or different and may be methyl or ethyl.
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