Abstract:
There is disclosed a copolymer composition derived from monomeric units comprising (a) an N-vinyl lactam corresponding to the formula:
wherein R represents a divalent alkylene bridge having sufficient carbon atoms to form a five, six or seven member heterocyclic ring system and R1 is a member selected from the group consisting of hydrogen and lower alkyl and (b) a branched chain aliphatic carboxylic acid ester corresponding to the formula:
wherein R1, R2 and R3 are saturated alkyl groups. The polymers of the invention may be made into homogeneous solutions when the amount of (a) is 1:99% and the amount of (b) is 99:1% of the total weight of the polymer or suspensions; or they may be made as stable aqueous emulsions when the ratio of (a) and (b) is 10: 60% and 90:40%, respectively.
Abstract translation:公开了一种衍生自单体单元的共聚物组合物,其包含(a)对应于下式的N-乙烯基内酰胺:R R1-CH型角度C = O。 N | CH并行CH2其中R表示具有足够碳原子以形成5,6或7元杂环系的二价亚烷基桥,R 1为选自氢和低级烷基的成员,(b)支链 对应于下式的R 1 | R 2 -C-COOH = CH 2 | R 3的脂族羧酸酯,其中R 1,R 2和R 3是饱和烷基。 当(a)的量为1:99%且(b)的量为聚合物或悬浮液的总重量的99:1%时,本发明的聚合物可制成均匀溶液; 或者当(a)和(b)的比例分别为10:60%和90:40%时,它们可以制成稳定的水性乳液。
Abstract:
STABLE AQUEOUS EMULSIONS COMPRISING GRAFTED TERPOLYMERS OF A POLYMERIC N-VINYL LACTAM, SUCH AS POLYVINYL PYRROLIDONE, WITH AN ARYLALKENE (E.G. STYRENE OR VINYL TOLUENE) AND A VINYL KETONE (E.G. METHYL VINYL KETONE).
Abstract:
There is disclosed a graft copolymer of a monomer mixture comprising diacetoneacrylamide and an ester of acrylic or methacrylic acid graft polymerized on a polymeric N-vinyl lactam as substrate, a stable aqueous emulsion containing same and method of producing same.
Abstract:
1. An emulsion copolymerization process for producing an aqueous emulsion comprising copolymerization of approximately by weight 1-99 parts of an N-vinyl lactam and 99 to 1 parts of a vinyl ester having the formula WHEREIN R is C1 18 alkyl, in an aqueous medium having a total solids content by weight of about 40 to 60% and containing as seeding agent 5-20% polymeric N-vinyl lactam based on the amount of said N-vinyl lactam.
Abstract:
A high molecular weight, film-forming quaternary ammonium polymer is provided represented by the following formula:
wherein n ranges from about 20 to about 95 mole %, m ranges from about 5 to about 80 mole % and p ranges from 0 to about 50 mole %, and n + m + p 100; R1 is H or CH3; R2 is alkylene or containing from 2 to about 20 carbon atoms; each R3 is a lower alkyl radical which can be the same or different; R4 is alkyl or aralkyl of from 1 to 8 carbon atoms; X is a member selected from the group consisting of halogen, SO4, HSO4 and R4SO4 radicals; and M is the residuum of a copolymerizable vinyl monomer. Methods for forming such polymers are also provided comprising heating a solution comprising vinyl pyrrolidone and a dilower alkylaminoalkyl acrylate or methacrylate in a solvent therefor in the presence of a free radical initiator at temperatures ranging from about 50*C. to about 100*C. for a sufficient period of time to substantially effect copolymerization, and thereafter admixing the copolymer with a quaternizing agent to quaternize the resulting copolymer.
Abstract translation:提供高分子量成膜季铵聚合物,由下式表示:|| ANGLE PARALLEL NOR1 || --- CH - CH2 --- CH2-C ---- M --- n|mp C = O | O-R 2 -N(R 3)2 -R 4 +,其中n为约20至约95摩尔%,m为约5至约80摩尔%,p为0至 约50摩尔%,和n + m + p = 100; R1是H或CH3; R 2是亚烷基或含有2至约20个碳原子; 每个R 3是可以相同或不同的低级烷基; R4是1至8个碳原子的烷基或芳烷基; X是选自卤素,SO 4,HSO 4和R 4 SO 4基团的成员; M是可共聚乙烯基单体的残渣。
Abstract:
A novel complex which is formed when essentially equimolar proportions of the methyl ester of 3-amino-2,5-dichlorobenzoic acid and the methyl ester of 2,5-dichloro-3-nitrobenzoic acid are heated together which complex shows herbicidal activity.