Patent GB-1211532-A (GB)
Title: Improved emulsions
Inventor: NICKS PETER FRANCIS
IPC: C09K23/00
Filed: 1966-11-09
Abstract: 1,211,532. Emulsions. IMPERIAL CHEMICAL INDUSTRIES Ltd. 30 Oct., 1967 [9 Nov., 1966], No. 50215/66. Heading B1V. '[Also in Division C3] Emulsions of aliphatic and aromatic hydrocarbons, esters, ketones, ethers, alcohols, alkanols, water, petroleum greases, jellies or waxes, which are liquid or in solution at the emulsifying temperature, are prepared using as emulsifying agent a polymeric material having in its molecule at least one component soluble and non-self-associated in the disperse phase and at least one component of another type and soluble and non-self-associated in the continuous phase, the average molecular weight of each component being at least 1,000; the total molecular weight of the components of a given type being at least 3,000 or at least nx 1000 where n is the number of components of the other type whichever is the higher, and the ratio of the total molecular weights of the individual components of the two types is from 3:1 to 1:3. The proportion of emulsifying agent may be from 1% to 10% by weight of disperse phase. The disperse phase may have particle size 2 to 0.1 micron. The liquid in which the emulsifying agent is dissolved in preparing the emulsion generally becomes the continuous phase. Examples relate to emulsions comprising (1), di-(#-epoxyethyl) phthalate, aliphatic 70-90C. bpt hydrocarbon; emulsifying agent a copolymer of methyl methacrylate and methacrylic acid with side chains of poly 12-OH stearic acid; (5), hexamethoxy-methyl melamine, aliphatic 70- 90C. hydrocarbon, emulsifying agent as (1); (6), isocyanate prepolymer 40% solution in ethyl acetate, aliphatic 70-90C. bpt hydrocarbon, emulsifying agent as (2); (7), glycerol, aliphatic 70-90C. hydrocarbon, emulsifying agent vinyl pyrrolidone/acrylic acid (4:1) copolymer carrying side-chains of poly-12-OH stearic acid; (9), ethylene dichloride, water, emulsifying agent methoxyl terminated polyethylene glycol methacrylate reacted with a copolymer of methyl methacrylate and methacrylic acid; (10) an emulsion of a liquid epoxy resin in white spirit with emulsifying agent (1) mixed with a solution of bitumen in white spirit; (12), di(#-ethoxy ethyl)phthalate, aliphatic 90-120C. hydrocarbon, emulsifying agent the product of polymerisation of methyl methacrylate in a solution in ethyl acetate/butyl acetate of laurylmethacrylate/ glycidyl methacrylate copolymer; (14) (A), ethyl acetate, water, emulsifying agent a copolymer of the methacrylate ester of methoxyl terminated polyethylene glycol with methyl methacrylate/methacrylic acid, 33% in acetone; (14) (B), aliphatic 70-90C. bpt hydrocarbon, water, copolymer as (14) (A); (14) (C), di(#-elthoxyethyl)phthalate, water, emulsifying agent 1:1 copolymer of methoxyl polyethylene glycol methacrylate/methyl methacrylate 40% in acetone; (15), methyl methaorylate, water, copolymer as (14) (A); (16), xylene, water, copolymer as (14) (A), 33% in acetone; (18), di(#-elthoxyethyl)phthalate, water, emulsifying agent a copolymer of methyl methacrylate/ methacrylic acid with vinyl pyrrolidone side chains, 40% in acetone; (19) (A), methyl methacrylate, water, copolymer as (14) (A); (19) (B), as (19) (A), copolymer 30% in acetone; (20), hexane triol-polyethylene oxide adduct, aliphatic 90-150C. bpt hydrocarbon, emulsifying agent a copolymer of (a) an ester of methacrylic acid and a self-ester of 12-OH stearic acid, (b) an ester of methacrylic acid and a polyethylene glycol (c) hydroxyethylacrylate; (21), a mixture of emulsion (20) and emulsion (6).