32.
    发明专利
    未知

    公开(公告)号:DK477785A

    公开(公告)日:1986-04-20

    申请号:DK477785

    申请日:1985-10-18

    Applicant: BASF AG

    Abstract: 1. A light-weight building board which is based on mineral fibers and a thermoplastic binder, may furthermore contain fillers, fireproofing agents and water repellents and contains, as the binder, from 4 to 20 %, based on the weight of the mineral fibers, of a polymer having a glass transition temperature fo from 60 to 1108C and consisting of from 60 to 100 % by weight, based on the copolymer, of (meth) acrylates of alcohols of 1 to 4 carbon atoms and from 0 to 40 % by weight of (meth) acrylonitrile and/or styrene, which board additionally contains a salt of a carboxylic acid of 12 to 36 carbon atoms with a polyvalent metal.

    Formaldehyde-free binder for mouldings

    公开(公告)号:IN326CH1997A

    公开(公告)日:2006-08-11

    申请号:IN326CH1997

    申请日:1997-02-18

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP97/00768 Sec. 371 Date Aug. 21, 1998 Sec. 102(e) Date Aug. 21, 1998 PCT Filed Feb. 19, 1997 PCT Pub. No. WO97/31059 PCT Pub. Date Aug. 28, 1997A method for forming shaped products by mixing a formaldehyde-free aqueous binder comprising A) a free-radically polymerized polymer containing from 5 to 100% by weight of units derived from an ethylenically unsaturated acid anhydride or from an ethylenically unsaturated dicarboxylic acid whose carboxyl group can form an anhydride group, and B) an alkanolamine having at least two hydroxyl groups, with fibers or chips to form a shaped article, wherein said binder has a property of drying at 50 DEG C. in 72 hours to a film from 0.3 to 1 mm in thickness and, following a subsequent 15 minute cure at 130 DEG C. in air, has a gel content of above 50% by weight, wherein the binder includes less than 0.1% by weight, based on A)+B), of a phosphorus-containing reaction accelerant with fibers or chips.

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