Butanediol-(1,3)-1-mono-(3'-hydroxybutyrate)prepn. - by thermal rearrangement of butanediol-(1,3)-3-mono-(3'-hydroxybutyrates)

    公开(公告)号:DE2500310A1

    公开(公告)日:1976-07-08

    申请号:DE2500310

    申请日:1975-01-07

    Applicant: BASF AG

    Abstract: Butanediol-1,3)-1-mono-(3'-hydroxybutyrates) of formula (I) are new R2-CH2-CHOH-CHR'-COOCH2-CHR'--CHOH-CH2R2 (I) (where individual gps. R' and R2 are opt. same and denote H or an aliphatic gp). (I) are prepd. by reaction of butanediol-(1,3)-3-mono-(3'-hydroxybutyrates) of formula R2-CH2-CHOH-CHR'-COO-CH(CH2R2)-CHR'-CH2OH (Ii) at 120-220 degrees C. (I) are starting materials for prepn. of polyesters, esp. those stable to saponification polyurethanes, plastics and plasticisers. (I) can be reacted with fumaric acid or maleic anhydride for 8 hrs. at 180-200 degrees C to form polyesters which copolymerise with 30 wt.% styrene to a on-saponificaable, water-repellant resin, useful as swimming-pool lacquers, outdoor paints, weather-proof wood finishes. (I) can also react in 1:2 mol ratio with (meth)acrylic acid to form bi-functional monomers for synthesis of radiation hardenable lacquers, e.g. on wood, plastics, paper, metal, in combination with unsatd. polymers. (I) can form cross-linkable coatings which can be sprayed on and have high gloss.

    49.
    发明专利
    未知

    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

    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.

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