公开(公告)号：DE2443786A1

公开(公告)日：1976-04-01

申请号：DE2443786

申请日：1974-09-13

Applicant: BASF AG

Inventor： BARZYNSKI HELMUT DIPL CHEM DR ,  LENZ WERNER DIPL CHEM DR ,  WERTHER HEINZ-ULRICH DIPL CHEM ,  HARTMANN HEINRICH DIPL CHEM DR ,  LEHNER AUGUST ING GRAD ,  STUTZ HERBERT DIPL CHEM DR ,  HOFFMANN GERHARD DIPL CHEM DR

IPC: C08F299/00 ,  C08F2/50 ,  C08F290/00 ,  C08F299/06 ,  C08G18/67 ,  G03F7/032 ,  G03F7/038 ,  G03F7/02

Abstract: 1519059 Photo-crosslinkable polyurethane composition BASF AG 12 Sept 1975 [13 Sept 1974] 37561/75 Heading C3V A photo-crosslinkable composition comprises a photoinitiator and a mixture of the following materials in the proportions:-(A) from 40 to 80% by weight of an olefinically unsaturated isocyanate group-free polyurethane which has a molecular weight of from 400 to 10,000 and which has been manufactured by reaction of (A1) a polyester having a hydroxyl number of 100 to 300 and derived from a C2 to C8-saturated polyhydric aliphatic alcohol and a C4 to C8- saturated dicarboxylic acid, or an ester forming derivative of such dicarboxylic acid, at least 50 mole per cent of such polyester-forming materials being saturated aliphatic compounds with (A2) a C6 to C36-polyisocyanate and (A3) a monoacrylate or monomethacrylate of a C2 to C10- aliphatic diol and (B) from 60 to 20% by weight of a C6 to C8-N-vinyl lactam-monomer or a mixture of at least 20% by weight thereof with at least one comonomer, or with a reaction product prepared from (A2) and (A3). Examples are given in which (a) an adipic acid/phthalicanhydride/1,2 -propylene glycol/1,1,1-trimethylolpropane polyester is reacted with hexamethylene diisocyanate and 2-hydroxypropyl acrylate, the product being mixed with N- vinylpyrrolidone and benzoin methyl ether, applied to a substrate and exposed image-wise to UV light to form a relief printing plate; (b) as (a) except that a monomer mixture (B) of N - vinylpyrrolidone, 1 - hydroxypropyl acrylate, 2 - hydroxypropyl acrylate and acrylamide is used; (c) a polyester as in (a) is reacted with isophorone diisocyanate, 2-hydroxypropyl acrylate and, optionally, 1 - hydroxypropyl acrylate, mixed with N-vinylpyrrolidone or a mixture thereof with 2-hydroxypropylacrylate and acrylamide, and used as in (a), using benzoin isopropyl, or methyl ether as initiator.

公开(公告)号：DE3142322A1

公开(公告)日：1983-05-05

申请号：DE3142322

申请日：1981-10-24

Applicant: BASF AG

Inventor： BUELTJER UWE DIPL CHEM DR ,  STUTZ HERBERT DIPL CHEM DR

IPC: C08G18/10 ,  C08G18/48 ,  C09K3/10

Abstract: The invention relates to grouts which are resistant to liquid hydrocarbons and are based on A) from 50 to 80 parts by weight of a polyether-polyol mixture having a mean functionality of from 2.1 to 3 and a hydroxyl number of from 80 to 200, preferably comprising i) from 30 to 70 parts by weight of at least one difunctional polyether-polyol having a hydroxyl number of from 100 to 350 and ii) from 30 to 70 parts by weight of at least one trifunctional to tetrafunctional polyether-polyol having a hydroxyl number of from 15 to 50, B) from 25 to 60 parts by weight of an NCO group-containing prepolymer having an NCO content of from 2 to 20% by weight, prepared from polyether-polyols having a functionality of from 2 to 3 and a hydroxyl number of from 30 to 100 and organic polyisocyanates, C) from 0.05 to 2.0 parts by weight, per 100 parts by weight of components A and B, of a polyurethane catalyst, and optionally D) from 3 to 60 parts by weight, per 100 parts by weight of components A and B, of a filler. The grouts are particularly suitable for water-tight filling of joints, grooves and cavities in concrete.

公开(公告)号：DE3138422A1

公开(公告)日：1983-04-14

申请号：DE3138422

申请日：1981-09-26

Applicant: BASF AG

Inventor： STUTZ HERBERT DIPL CHEM DR ,  ILLERS KARL HEINZ DIPL PHYS DR ,  HABERKORN HERBERT DIPL PHYS DR ,  HECKMANN WALTER DIPL PHYS DR

IPC: C08G18/00 ,  C08G18/76 ,  C08G18/14 ,  C08G18/10 ,  C08G18/66 ,  C08G18/60

Abstract: The invention relates to a method for the preparation of cellular polyurethane elastomers with densities of approximately 250 to 800 grams per liter by reacting 4,4'-diisocyanato-1,2-diphenylethane or a diisocyanato-1,2-diphenylethane isomer mixture with a 4,4'-diisocyanato-1,2-diphenylethane content of more than 95 percent by weight with higher molecular weight polyhydroxyl compounds and water, as well as optionally chain extenders in the presence of auxiliaries and/or additives according to the one-shot or preferably the prepolymer method in closed molds. Compared with products based on 4,4'-diisocyanatodiphenylmethane, the polyurethane elastomer molded parts have improved physical and thermal properties.

公开(公告)号：DE3028501A1

公开(公告)日：1982-03-04

申请号：DE3028501

申请日：1980-07-26

Applicant: BASF AG

Inventor： STUTZ HERBERT DIPL CHEM DR ,  WEYLAND PETER DIPL CHEM DR ,  BITTNER GERHARD DIPL CHEM DR

IPC: C08G18/42 ,  C08G18/60 ,  C08G18/66

公开(公告)号：DE2731815A1

公开(公告)日：1979-02-01

申请号：DE2731815

申请日：1977-07-14

Applicant: BASF AG

Inventor： STUTZ HERBERT DIPL CHEM DR ,  ILLERS KARL HEINZ DIPL PHYS DR ,  SCHUSTER LUDWIG DIPL CHEM DR

IPC: C08G18/10 ,  C08G18/75 ,  C08G18/32

Abstract: Polyurethane-urea elastomers with improved temperature characteristics, in particular improved low temperature properties, good mechanical properties over a large temperature range and excellent resistance to hydrolysis, are obtained by reacting (A) a prepolymer, possessing cycloaliphatic NCO groups, which has been prepared from essentially difunctional polyhydroxy compounds and organic diisocyanates possessing at least one NCO group bonded to a cycloaliphatic structure, these reactants being used so as to give a ratio of total hydroxyl: NCO groups of from 1:1.2 to 1:10, with (B) 3,3',5,5'-tetramethyl-4,4'-diamino-diphenylmethane, A and B being reacted in the molar ratio of from 1:0.8 to 1:1.2.