[EN] UNSATURATED POLYESTER RESINS<br/>[FR] RESINES DE POLYESTER INSATURE
申请人:NESTE CHEMICALS OY
公开号:WO2000023495A1
公开(公告)日:2000-04-27
The invention relates to unsaturated polyester resins with higher molecular weight, low viscosity and high solubility specially in reactive diluents. The invention also relates to a method for manufacture of such unsaturated polyester resins and to use thereof in various applications such as gelcoats. The unsaturated polyester resin comprises 20-85 wt.% of at least one unsaturated polyester having a molecular weight of 2000-6000, prepared from 1) 30-70 mol%, preferably 40-60 mol% of at least two unsaturated carboxylic acids or derivatives thereof and at least one of them is an unsaturated aromatic carboxylic acid or a derivative thereof and optionally of one or more carboxylic acids and derivatives thereof, 2) 30-70 mol%, preferably 40-60 mol% of at least two diols and at least one of them is an aliphatic branched diol, preferably 2,2,4-trimethyl-1,3-pentanediol and/or 2-butyl-2-ethyl-1,3-propanediol and the amount of the aliphatic branched diol/diols is 0.5-8 mol%, preferably 2-6 mol%, 3) 0.5-10 mol%, preferably 2-6 mol% of at least one monoalcohol, 4) optionally a modifying chemical/chemicals and the total amount of monoalcohols and modifying chemicals is 0.5-20 mol%, preferably 1-15 mol%, 5) optionally 0.5-20 mol%, preferably 1-10 mol% of a polyhydric alcohol/alcohols having at least three hydroxyl groups, and 15-50 wt.% of at least one reactive diluent.
[EN] UNSATURATED POLYESTER GEL COATS WITH ANTIFOULING PROPERTIES<br/>[FR] REVETEMENT GELIFIE DE POLYESTER INSATURE POSSEDANT DES PROPRIETES ANTISALISSURES
申请人:ASHLAND INC
公开号:WO2001074953A1
公开(公告)日:2001-10-11
This invention relates to unsaturated polyester gel coats with antifouling properties and to the use of unsaturated polyester gel coats containing antifouling agents for applications, such as marine coatings. Unsaturated polyester gel coats with antifouling properties comprise antifouling agents selected from the group consisting of 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one, cyclopropyl-N'-(1,1-dimethylethyl)-6-(methylthio)-1,3,5-triazine-2,4-diamine and N-[(fluoro-dichloro-methyl)thio]-phthalimide or a mixtures thereof. Additionally the invention relates to the preparation of unsaturated polyester gel coats having antifouling properties.
Metallo-β-lactamase inhibitory activity of phthalic acid derivatives
4-Butyl-3-methylphthalic acid was recognized as a metallo-β-lactamase inhibitor. The structure–activity relationship study of substituted phthalicacids afforded 3-phenylphthalic acidderivatives as potent IMP-1 inhibitors. On the other hand, 3-substituted with 4-hydroxyphenyl phthalicacidderivative displayed a potent combination effect with biapenem (BIPM) against Pseudomonas aeruginosa that produce