中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

14 records (took 0.02 seconds)

    A process for the alkaline polymerisation of lactams
    4.
    发明专利
    A process for the alkaline polymerisation of lactams 未知

    公开(公告)号：GB900150A

    公开(公告)日：1962-07-04

    申请号：GB2422060

    申请日：1960-07-12

    Applicant: BASF AG

    Inventor： DACHS KARL ,  BRUEGGEMANN HORST ,  BOECK EDMUND

    IPC: C08G69/20

    Abstract: A process for the polymerization of lactams having from 4 to 12 ring carbon atoms in the presence of an alkaline polymerization initiator and a polymerization activator comprises using as the activator a substituted urea, thiourea or guanidine, which is capable of being dissolved undecomposed in the lactams at the polymerization temperature, having the general formula where R1, R2 and R3 are hydrogen atoms or monovalent hydrocarbon radicals having from 1 to 20 carbon atoms, or R1 and R2 together represent a divalent aryl radical of the general formula -CH-(CH2)n-CO- where n is an integer from 3 to 11, and in which said radicals R1, R2 and R3 may be substituted by fluorine or ether groups, X is oxygen, sulphur or the radical > N-R5 where R5 is a hydrogen atom or a monovalent hydrocarbon radical having from 1 to 20 carbon atoms, and R4 is a monovalent hydrocarbon radical with from 1 to 20 carbon atoms or one of the radicals and wherein Y represents a divalent and Z a trivalent hydrocarbon radical with from 1 to 20 carbon atoms which may be substituted by fluorine or ether groups and X, R1, R2 and R3 have the same meanings as given above. A large number of activators is specified. Specified lactams are pyrrolidone, piperidone, S -caprolactam, oenanthic lactam, caprylic lactam and lauric lactam. Specified initiators are the alkali and alkaline earth metals and alkaline reacting compounds thereof. The examples describe the polymerization of caprylic lactam, S -caprolactam, lauric lactam and a -pyrrolidone in the presence of as activators 1,6-bis(N1-butylureids)hexane, 1,3-bis(N1-butylureids)benzene, 1,6-bis(caprolactam-N-carbamido)hexane, 1,6-bis(caprylic lactam-N-carbamido)-hexane, 1,6-bis(pyrrolidone-N-carbamido)-hexane, pyrrolidone N-carbonic acid anilide, 1,5-bis(caprolactam-N-carbamido)-naphthalene, N-phenyl-N1-butyl urea, N-phenyl-N1-stearyl urea, N-phenyl-N1-a -naphthyl urea, N-phenyl-N1-butyl thiourea, N-phenyl-N1-a -naphthyl thiourea, N-p-fluorphenyl-N1-phenyl urea, N-p-ethoxyphenyl-N1-phenyl urea, N-p-fluorphenyl-N1-p-methoxyphenyl urea, N,N1,N11-tricyclohexyl guanidine, morpholine-N-thiocarbonic acid anilide, 1,3-bis(N1-phenylthioureido)-4-methylbenzene, 1,3-bis-(N1-phenylureido)-4-methylbenzene, 1,3-bis-(N1,N11 - dicyclohexylguanido) - 4 - methylbenzene, 4,41-bis-(N1-phenylureido)-dicyclohexylmethane, 4,41-bis-(N1-phenylthioureido)-dicyclohexylmethane, 4,41-bis-(N1-phenylureido)-diphenyl ether, 4,41-bis-(N1-phenylureido)-diphenyl sulphone, 1,10-bis-(N1-phenylureido)-2-n-nonyldecane, 1,11-bis-(N1-phenylthioureido)-2-n-octylundecane, 4,41,411-tris-(N1-phenylureido) -tricyclohexylmethane, 4,41,411-tris-(N1-phenylthioureido) - 3,31 - dimethoxy - triphenylmethane, 3,31,311-tris-(N1-p-fluorphenylureido) -tri-n-propylamine, 3,31,311-tris-(N1-p-methoxyphenylureido) -tri-n-propylamine, pyrrolidone-N-carbonic acid anilide, pyrrolidone-N-carbonic acid p-fluoranilide, pyrrolidone-N-carbonic acid p-ethoxyanilide, caprylic lactam-N-carbonic acid stearylamine, 1,3-bis-(pyrrolidone-N-carbamido)-4-methylbenzene, 1,3-bis-(lauroylic lactam-N-carbamido)-4-methylbenzene, 1,5-bis-(pyrrolidone-N-carbamido)-naphthalene, 1,10-bis-(caprylic lactam-N-carbamido)-2-n-nonyl-decane, caprylic lactam-N-carbonic acid-N1,N11-dicyclohexylamidine, 4,41,411-tris-(caprylic lactam-N-carbamido)-triphenyl methane, 4,41,411-tris-(caprolactam-N-carbamido)-triphenyl methane, 6,61,611-tris-(caprylic lactam-N-carbamido)-tri-n-hexylamine and 2,4,41-tris-(caprylic lactam-N-carbamido)-biphenyl.

    Production of impact-resistant polystyrene
    7.
    发明专利
    Production of impact-resistant polystyrene 未知

    公开(公告)号：GB1049665A

    公开(公告)日：1966-11-30

    申请号：GB3560263

    申请日：1963-09-10

    Applicant: BASF AG

    Inventor： BRONSTERT KLAUS ,  WILD HANS ,  ECHTE ADOLF ,  BOECK EDMUND ,  KRAUSE HANS-JOACHIM

    IPC: B29C51/00 ,  C08F279/02 ,  C08F287/00 ,  C08L21/00 ,  C08L51/00 ,  C08L51/04 ,  C08L55/02

    Abstract: Impact-resistant polystyrene having improved surface properties is made by first polymerizing styrene in which is dissolved a substantially uncrosslinked rubber, and then mechanically mixing the product with a crosslinked or crosslinkable rubber. Up to 35% of the styrene in the first stage of the process may be replaced by a comonomer, e.g. acrylonitrile, alkylstyrenes and halostyrenes. The examples describe polymerizing styrene with: (1) a butadiene-styrene copolymer, and mixing the product with a butadiene-styrene copolymer, (2) a butadiene-styrene copolymer, and mixing the product with a butadiene-butyl fumarate copolymer, (3) cis-1,4-polybutadiene, and mixing the product with a butadiene-butyl fumarate copolymer, (4-5) acrylonitrile, a butylacrylate-acrylonitrile copolymer and cis-1,4-polybutadiene, and mixing the product with a butadiene-acrylonitrile copolymer.

    9.
    发明专利
    未知

    公开(公告)号：FR1262436A

    公开(公告)日：1961-05-26

    申请号：FR833021

    申请日：1960-07-15

    Applicant: BASF AG

    Inventor： DACHS KARL ,  BRUEGGEMANN HORST ,  BOECK EDMUND

    IPC: C08G69/20

    Abstract: A process for the polymerization of lactams having from 4 to 12 ring carbon atoms in the presence of an alkaline reaction initiator and a polymerization activator comprises using as the polymerization activator a substituted urethane which is capable of being dissolved undecomposed in the lactam at the polymerization temperature, having the general formula where R1, R2 and R3 represent a hydrogen atom or a monovalent hydrocarbon radical having from 1 to 20 carbon atoms, which may be substituted by fluorine or ether groups, or in which R1 and R2 together represent a divalent acryl radical of the general formula -CH2-(CH2)n-CO where n is an integer from 3 to 11, X is oxygen, sulphur or > N-R4 wherein R4 is hydrogen or a monovalent hydrocarbon radical as defined above, or in which R1 has the meanings defined above and R2 and/or R3 represent the radicals where Y is a divalent and X a trivalent hydrocarbon radical with from 1 to 20 carbon atoms, which may be substituted by fluorine or ether groups, and X, R1, R2 and R3 are as defined above. Specified lactams are pyrrolidone, piperidone, caprolactam, oenanthic lactam, caprylic lactam and lauric lactam. Many activators are specified. In the examples:- (1) caprylic lactam is polymerized in the presence of 1,6-hexamethylene-N,N1-bis-ethylurethane and a caprylic lactam-potassium hydroxide reaction product; (2) caprolactam is polymerized in the presence of potassium and 1-methyl-phenylene-2,4-bis-N,N1-benzylurethane and (3) caprylic lactam is polymerized in the presence of potassium and p,p1-phenylene-bis-N,N1-phenylurethane.

Patent Agency Ranking