Extending the chemical product tree: a novel value chain for the production of <i>N</i>-vinyl-2-pyrrolidones from biogenic acids
作者:Moritz Otto Haus、Yannik Louven、Regina Palkovits
DOI:10.1039/c9gc01488h
日期:——
ethanolamine and hydrogen using small amounts of water as solvent together with solid catalysts. For effective conversion, the optimal catalyst (carbon supported ruthenium) has to hold the ability of activating H2 as well as (imide) CO bonds. The obtained products, N-(2-hydroxyethyl)-2-pyrrolidones, are subsequently converted in a continuous gas phase dehydration over simple sodium-doped silica, with
FILM FORMING COATING COMPOSITIONS CONTAINING CARBOXAMIDE COALESCING SOLVENTS AND METHODS OF USE
申请人:Luebke Gary
公开号:US20130143986A1
公开(公告)日:2013-06-06
A film may be formed from film forming compositions which comprise at least one carboxamide based coalescing solvent. These coalescing solvents impart equivalent or improved wet-scrub resistance, block resistance, gloss, dirt pick-up resistance and leveling characteristics to the films on a substrate, without contributing to total VOC levels, when replacing conventional coalescing solvents. The present invention also includes a method for forming a film comprising applying a film forming composition comprising polyunsaturated reactive carboxamides to a substrate and curing the film under ambient conditions. The coalescing carboxamide solvents are suitable for paint, latex based caulk, adhesives and floor care applications.
Salts of N-substituted-2-pyrrolidone-4-carboxylic acids as humectants
申请人:PFIZER INC.
公开号:EP0069512A2
公开(公告)日:1983-01-12
Alkali metal salts of N-(C1-C5)alkyl- or N-(C1-C5)hydroxyalkyl-2-pyrrolidone-4-carboxylic acids and compositions containing them are useful as humectants, particularly in topical cosmetic and pharmaceutical compositions.
Biorenewable, water-degradable polymers and co-polymers
申请人:University of Florida Research Foundation, Inc.
公开号:US10738151B2
公开(公告)日:2020-08-11
Various embodiments relate to biorenewable and water-degradable co-polymers and methods of producing co-polymers that include a plurality of first monomeric units and a plurality of second monomeric units joined by a plurality of hydrolytically-sensitive ester linkages. Each of the plurality of first monomeric units may be derived from a first monomer. The first monomer may be the product of a reaction between itaconic acid and a first amino acid. Each of the plurality of second monomeric units may be derived from a second monomer. The second monomer may be the product of a reaction between itaconic acid and a second amino acid. The co-polymers may be a product of the reaction of the first monomer and the second monomer in the presence of a diol. The co-polymers may have a glass transition temperature of about 50° C. or greater.
COMPOSITION COMPRISING AT LEAST ONE 2-PYRROLIDONE FUNCTIONALIZED IN THE 4 POSITION WITH A CARBOXYLIC ACID OR AMIDE, AND AT LEAST ONE DIRECT DYE OR A PIGMENT FOR DYEING KERATIN FIBRES
申请人:Sabelle Stéphane
公开号:US20130167307A1
公开(公告)日:2013-07-04
The invention relates to a composition for dyeing keratin fibres, and in particular human keratin fibres such as the hair, comprising at least one 2-pyrrolidone functionalized in the 4 position with a carboxylic acid or amide radical, and at least one hydrophobic direct dye or a pigment; a dyeing process using this composition. Similarly, the invention relates to the use of the said pyrrolidone combined with a direct dye or a pigment for dyeing keratin fibres, and especially to the use of the said pyrrolidone for improving the colour uptake onto the fibres of direct dyes that are sparingly soluble or insoluble in aqueous-alcoholic supports. The invention also relates to novel pyrrolidone derivatives. The present invention makes it possible in particular to obtain direct dyeing on keratin fibres that is fast, resistant to washing, chromatic and powerful.