公开(公告)号：DE19537935A1

公开(公告)日：1996-04-25

申请号：DE19537935

申请日：1995-10-12

Applicant: BASF AG

Inventor： BECHERT BERTOLD ,  SCHWARTZ MANFRED DR ,  DOTZAUER BERNHARD DR ,  GLOECKNER MARTIN

IPC: C08F2/26 ,  C08F230/08 ,  C08J3/03 ,  C08K5/42 ,  C08L101/10 ,  C08L57/04 ,  C08L43/04 ,  C09D201/10 ,  C09D157/04

Abstract: Aq. polymer dispersions contain (a) a dispersed polymer contg. 0.1-5 wt.% of a chemically bonded organosilicon cpd. which forms a silanol by hydrolysis and (b) a cpd. of formula (I). A , A =H or 4-24C alkyl (not both H at the same time); X,Y=alkali metal or ammonium ions.

公开(公告)号：DE4404188A1

公开(公告)日：1995-08-17

申请号：DE4404188

申请日：1994-02-10

Applicant: BASF AG

Inventor： MATHAUER KLEMENS DR ,  DITTRICH UWE DR ,  ENDISCH STEFEN ,  GLOECKNER MARTIN ,  BECHERT BERTOLD

IPC: C08F214/00 ,  C08F12/00 ,  C08F14/00 ,  C08F20/10 ,  C08F30/08 ,  C08F212/04 ,  C08F218/02 ,  C08F218/04 ,  C08F220/18 ,  C08F220/42 ,  C08F230/08 ,  C08F246/00 ,  C09J157/04 ,  C09J143/04 ,  C09D157/04 ,  C09D143/04 ,  C09K3/10 ,  E04C2/04

Abstract: New copolymer prepd. by radical polymerisation, comprising: (A) 30-99.9 wt.% main monomers chosen from 1-20 C alkyl(meth)acrylates, 1-20 C carboxylic acid vinyl esters, vinyl aromatic cpds. with up to 20 C atoms, ethylenic unsatd. nitriles, vinyl halides or 2-8C aliphatic hydrocarbons contg. 1-2 double bonds; (B) 0.01-5 wt.% mixt. of hydrolysable silicon cpds. comprising: (B1) ethylenic unsatd. copolymerisable silicon cpds., and (B2) ethylenic satd. silicon cpds. bonded to the polymer chain during copolymerisation to act as regulators, the wt. ratio of (B1) to (B2) being 0.01-1:1-0.01; and (C) 0-69.99 wt.% monomers other than (A) or (B). Also claimed are sealing, bonding and coating materials contg. the copolymer and opt. at least 20 wt.% filler (wrt material).

公开(公告)号：DE4437879A1

公开(公告)日：1995-05-18

申请号：DE4437879

申请日：1994-10-22

Applicant: BASF AG

Inventor： BECHERT BERTOLD ,  SCHWARTZ MANFRED DR ,  DOTZAUER BERNHARD DR ,  GLOECKNER MARTIN

IPC: C08F2/26 ,  C08F230/08 ,  C08J3/03 ,  C08K5/42 ,  C08L101/10 ,  C08L57/04 ,  C08L57/06

Abstract: Aq. polymer dispersions contain (a) a dispersed polymer contg. 0.1-5 wt.% of a chemically bonded organosilicon cpd. which gives a silanol on hydrolysis and (b) a cpd. of formula (I), where A , A = H or 4-24C alkyl (not both H); X, Y = alkali metal or ammonium ions.

公开(公告)号：DE4341260A1

公开(公告)日：1994-05-11

申请号：DE4341260

申请日：1993-12-03

Applicant: BASF AG

Inventor： BECHERT BERTOLD ,  SCHWARTZ MANFRED DR ,  DOTZAUER BERNHARD DR ,  GLOECKNER MARTIN

IPC: C04B41/49 ,  C04B41/64 ,  C08G63/695 ,  C09D133/06 ,  C09D143/04 ,  C09D167/00 ,  C04B41/63 ,  B28B19/00 ,  C09D201/10

Abstract: A process for preventing efflorescence on mineral substrates (I) comprises treating the surface of (I) with an aq. prepn. contg., as principal component, an aq. dispersion of a polymer (II) contg. 0.1-5 wt.% chemically-bonded organo-Si cpd. (III) which forms a silanol by hydrolysis. Pref., (II) is prepd. by emulsion polymerisation of a mixt. of 95-99.5 wt.% n-butyl or 2-ethylhexyl acrylate, ethyl or methyl methacrylate and/or styrene (at least 2 of these monomers) and 0.5-5 wt.% (meth)acrylic acid, (meth)acrylamide or vinylsulphonic acid, in the presence of (III), esp. e.g. vinyltrimethoxysilane, gamma-methacryloxypropyl- trimethoxysilane, 3-mercaptopropyl- trimethoxysilane, gamma-glycidoxypropyl- trimethoxysilane (IIIA). USE/ADVANTAGE - Used esp. for preventing efflorescence on concrete roof tiles, bricks, etc.. The process provides a highly weather-resistant coating which affords excellent protection against lime efflorescence; the coating does not become sticky at elevated temp. and therefore does not attract dirt in hot weather.

公开(公告)号：DE4318083A1

公开(公告)日：1994-05-11

申请号：DE4318083

申请日：1993-06-01

Applicant: BASF AG

Inventor： BECHERT BERTOLD ,  SCHWARTZ MANFRED DR ,  DOTZAUER BERNHARD DR ,  GLOECKNER MARTIN

IPC: C04B41/48 ,  C04B41/63 ,  C08F2/22 ,  C08J3/03 ,  C08L71/02 ,  C09D133/06 ,  C08L33/06 ,  C08F212/00 ,  C08F220/12 ,  C08K5/07 ,  C08L25/00 ,  C09D5/02 ,  C09D7/12 ,  C09D125/00

Abstract: Aq. polymer dispersions (PD) contain (A) a copolymer of (a) 0.5-5 wt.% 3-8C mono-unsatd. carboxylic acid, anhydride and/or amide, (c) 95-99.5 wt.% 1-18C alkyl ester(s) of 3-6C alpha,beta-unsatd. acid(s) and/or vinylaromatic monomer(s) and (c) 0-4 wt.% other comonomers, (B) 0.1-7 wt.% (w.r.t. A) aromatic ketone(s) of formula R-CO-R1 (I), and (C) 0.1-7 wt.% (w.r.t. A) aromatic ketone(s) of formula (II), (III), (IV) or 2,4,6-trimethylbenzophenone; the total amt. of (B+C) = 0.1-7 wt.% w.r.t. (A); R is linear 1-4C alkyl, branched opt. substd. 3-4C alkyl, 6-20C aryl or the gp. R1; R1 of a gp. of formula (V). R2-R6 are each H, 1-4C alkyl or Ph, but with 1-3 of these gps. having the formula -OCOO-Ak-B1-Cq-O-Z; A, B, C are each -(CHRa-CHRb-O)y- (with Ra, Rb = H, OH, aryl, COOH, COOMe, COOEt or 1-4C alkyl; y = 1-80), -(CH2)n-O-(CH2)p- (with n, p = 1-5), polyoxa-alkylene with 2-20C O atoms linked with CH2 or -CH2CHMe- gp(s)., a gp. of formula -(CH2)m-OCOO-(CH2)n-, -(CH2)n-OCONH-(CH2)m-, -(CH2)nNHCOO(CH2)m-, -(CH2)m-COO-(CH2)n- or -(CH2)m-OCO-(CH2)n- (with m, n = 1-10), opt. substd. 5-10C cycloalkylene, 6-12C bis-methylenecycloalkylene or opt. substd. o-, m- or p-phenylene; Ak and Cq can also = a single bond, and at least one of the gps. Ak, B1 and Cq contains at least two O atoms; k, l, q are each 1-80; z is H, 1-6C alkyl, Ph (opt. substd. with 1-20C alkyl), -COO-alkyl, -COO-aryl, -arylene-OCOO-arylene-, -COO-(p-phenylene)-COR1 or a gp. of formula. R7 is H, 4-Me, 4-NH2, 4-Cl, 4-COOH, 4-COOMe, 2-COOH, 2-COOMe, 3-NO2, 3-COOH or 3-COOMe; if R is aryl, R2 or R6 is S, through which the aryl gp. is attached to R1 in the ortho position. Also claimed is a process for the prodn. of PD, by radical emulsion polymerisation of a mixt. of monomers (a), (b) and opt. (c), followed by addn. of components (B) and (C). USE/ADVANTAGE - Used for the prodn. of paint and coating systems (claimed). Also claimed are paint and coating prepns. contg. PD, and concrete roof tiles coated with PD. The invention provides aq. polymer dispersions contg. a mixt. of hydrophilic and hydrophobic photo-initiators, which enable the prodn. of coating systems with increased UV sensitivity, even after exposure to rain, and a low tendency to soiling, esp. soiling caused by efflorescence of mineral substrates.