Patent GB-647518-A (GB)
Title: Improvements in or relating to plastic compositions and lacquers made therefrom
IPC: C08L1/26
Filed: 1946-11-22
Abstract: An ester of an endo 9, 10 adduct of anthracene and a carboxylic acid having alpha, beta unsaturated olefinic bonds is used as a plasticizer for organic polymeric material.  Specified polymeric materials are polymers and co-polymers of vinyl acetate, vinyl propionate, vinyl butyrate, vinyl chloride, vinylidene chloride and styrene; polymethmethacrylate; polyethylene; butyl rubber; GR-S rubber; polyvinyl formal, acetal, butyral; urea- and melamine - formaldehyde resins; cellulose nitrate, acetate, acetobutyrate, and ethylcellulose.  The esterifiable adducts may be prepared by the methods described in Specification 647,466.  Specified esterified adducts are the diethyl, dipropyl, dibutyl, di-(2-ethyl hexyl) and n-octadecyl esters of the endo 9, 10 adduct of anthracene and 1-2-ethylene dicarboxylic acid.  Specified acids which may be used to form the adducts are maleic, itaconic, fumaric, crotonic, angelic, acrylic, methylacrylic and cinnamic. Specified alcohols for esterification of the adducts are trimethyl carbinol, benzyl, methyl, isopropyl, isobutyl, tert.-amyl, pentyl, hexyl, heptyl, and octyl alcohols.  The polymeric material may be plasticized by dissolving the material in a solvent or mixture of solvents and adding the plasticizer or by milling the material and plasticizer on a steam-heated rubber mill.  The ester adduct plasticizers may be used in conjunction with other ester types of plasticizers such as the phthalate esters.  Specified solvents are toluol, acetone, butanol, xylene, isophorone, n-butyl acetate, isopropyl alcohol, methyl ethyl ketone, acetone, and cyclohexanone.  Solutions of the plasticized materials may be used for coating, or casting films, whilst the plasticized materials themselves may be moulded, e.g. into sheets and boards.ALSO:An ester of an endo 9, 10 adduct of anthracene and a carboxylic acid having alpha, beta unsaturated olefinic bonds is used as a plasticizer for natural or synthetic rubbers.  Specified synthetic rubbers are GR-S and butyl rubber.  The esterifiable adducts may be prepared by the methods described in Specification 647,466, [Group IV (b)].  Specified esterified adducts are the diethyl, dipropyl, dibutyl, di-(2-ethyl hexyl) and n-octadecyl esters of the endo 9,10 adduct of anthracene and 1-2 ethylene dicarboxylic acid.  Specified acids which may be used to form the adducts are maleic, itaconic, fumaric, crotonic, angelic, acrylic, methylacrylic and cinnamic.  Specified alcohols for esterification of the adducts are trimethyl carbinol, benzyl, methyl, isopropyl, isobutyl, tert.-amyl, pentyl, hexyl, heptyl, and octyl alcohols. The plasticization of the natural or synthetic rubber may be effected by dissolving the material in a solvent or mixture of solvents and adding the plasticizer or by milling the rubber and plasticizer on a steam-heated rubber mill.  The esterified adducts may be used in conjunction with other ester types of plasticizers, e.g. phthalate esters.  Solvents mentioned are toluol, acetone, butanol, xylene, isophorone, n-butyl acetate, isopropyl alcohol, methyl ethyl ketone, acetone, and cyclohexanone.  Solutions of the plasticized materials may be used for coating, or casting films whilst the plasticized materials as such may be moulded, e.g. into sheets and boards.