Acrylic polymers in primary forms (excl. poly"methyl methacrylate", poly[N-"3-hydroxyimino-1,1-dimethylbutyl"acrylamide], copolymer of 2-diisopropylaminoethyl methacrylate with decyl methacrylate in the form of a solution in N,N-dimethylacetamide, containing by weight >= 55% of copolymer, copolymer of acrylic acid with 2-ethylhexyl acrylate containing by weight >= 10% but <= 11% of 2-ethylhexyl acrylate, copolymer of acrylonitrile with methyl acrylate modified with polybutadiene-acrylonitrile "NBR", polymerization product of acrylic acid with alkyl methacrylate and small quantities of other monomers for use as a thickener in the manufacture of textile printing pastes and copolymer of methyl acrylate with ethylene and a monomer containing a non-terminal carboxy group as a substituent, containing by weight >= 50% of methyl acrylate, whether or not compounded with silica)