Solvent-free silicone composition for release paper

Details Solvent-free silicone composition for release paper Solvent-free silicone composition for release paper

2006-10-13

2011-10-18

Gulakowski, Randy (Department: 1766)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

C428S041700, C428S041800, C428S447000, C528S031000, C528S032000, C528S033000, C524S862000, C525S474000

Reexamination Certificate

active

08039570

ABSTRACT:
A solvent-free silicone composition for release paper, comprising a mixture prepared byi) subjecting the organopolysiloxane (I) which is composed of R13SiO1/2units, SiO4/2units and (HO)SiO3/2units, and has an OH group content of from 0.02 to 0.1 mol/100 g, to a partial condensation reaction in an organic solvent in the presence of an alkaline catalyst and the organopolysiloxane (II) represented by the following formula (2), andii) removing the organic solvent,said mixture having an OH group content of less than 0.02 mol/100 g. The composition forms a tight-release layer stable with time.

REFERENCES:
patent: 3922443 (1975-11-01), Brown et al.
patent: 4057596 (1977-11-01), Takamizawa et al.
patent: 4071644 (1978-01-01), Grenoble et al.
patent: 5100976 (1992-03-01), Hamada et al.
patent: 5292586 (1994-03-01), Lin et al.
patent: 5308887 (1994-05-01), Ko et al.
patent: 5319040 (1994-06-01), Wengrovius et al.
patent: 5373078 (1994-12-01), Juen et al.
patent: 5468828 (1995-11-01), Hurford et al.
patent: 5708075 (1998-01-01), Chung et al.
patent: 2002/0061998 (2002-05-01), Cray et al.
patent: 2003/0035965 (2003-02-01), Irifune et al.
patent: 0 216 376 (1987-04-01), None
patent: 0 780 454 (1997-06-01), None
patent: 1 172 397 (2002-01-01), None
patent: 1 557 451 (2005-07-01), None
patent: 1 788 033 (2007-05-01), None
patent: 49-47426 (1974-05-01), None
patent: 50-141591 (1975-11-01), None
patent: 52-39791 (1977-10-01), None
patent: 57-77395 (1982-05-01), None
patent: 5-53183 (1993-08-01), None
Cypryk et al, Mechanism of the Acid-Catalyzed Si-O Bond Cleavage in Siloxanes and Siloxanols. A Theoretical Study; Organometallics, 2002, 21, pp. 2165-2175.

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