Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1988-01-22
1989-08-29
Lilling, Herbert J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524426, 524427, 524446, 524447, 524451, 524456, 524533, 526 87, 5263171, 526318, 5263183, 5263184, C08K 334, C08K 326, C08F 210, C08L 3900
Patent
active
048618225
ABSTRACT:
Cast ceiling tile requires a particular rheology of its wet formulation for the dried tile to have a desired aesthetic appearance. The use of a latex binder rather than starch for cast ceiling tiles imparts the necessary rheological properties to the wet ceiling tile formulation. The tile is prepared by blending mineral wool with a premixture of water, latex, and filler, said premixture having a sharp yield point when measured with a recording Brookfield Viscometer. The latex is an alkali-swellable latex comprising (i) a C.sub.3 -C.sub.8 .alpha.,.beta.-ethylenically unsaturated carboxylic acid monomer in an amount from about 15 to about 60 weight percent based on the weight of the monomers in the copolymer; (ii) at least one of a copolymerizable nonionic vinyl monomer in an amount from about 45 to about 30 weight percent based on the weight of the monomers in the copolymer and (iii) an additional late feed of nonionic vinyl monomer in an amount from about 10 to about 40 weight percent based on the weight of the monomers in the copolymer.
REFERENCES:
patent: 4056646 (1977-11-01), Westfall et al.
patent: 4070319 (1978-01-01), Carel et al.
patent: 4139514 (1979-02-01), Bassett
patent: 4199400 (1980-04-01), Bakule et al.
patent: 4258104 (1981-03-01), Lee et al.
patent: 4357442 (1982-11-01), Shah
patent: 4587278 (1986-05-01), Dotzauer et al.
patent: 4654254 (1987-03-01), Gerry et al.
patent: 4737533 (1988-04-01), Charmot et al.
Keskey William H.
Meath Kenneth R.
Lilling Herbert J.
The Dow Chemical Company
LandOfFree
Latexes as binders for cast ceiling tiles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Latexes as binders for cast ceiling tiles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Latexes as binders for cast ceiling tiles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2238783