Ethylenic Groups Are Non-conjugated, E.g., Divinylbenzene, Etc. Patents (Class 526/336)
  • Patent number: 3954709
    Abstract: The phenylethyl group, ##SPC1##In polymer carriers for the synthesis of peptides and peptide amides, particularly polymer carriers such as styrene-1% divinyl benzene polymers for use in solid phase peptide synthesis.The invention described herein was made in the course of work under a grant or award from the Department of Health, Education and Welfare.
    Type: Grant
    Filed: May 29, 1973
    Date of Patent: May 4, 1976
    Assignee: The Regents of the University of Colorado
    Inventors: John M. Stewart, Gary R. Matsueda
  • Patent number: 3953409
    Abstract: Conjugated diolefinic polymers having a molecular weight of less than 1,000,000 can be produced at high polymerization rates and in high yields by polymerizing a conjugated diolefin or copolymerizing a conjugated diolefin with a vinyl aromatic hydrocarbon in the presence of an alfin catalyst, in which as a molecular weight regulator is used a halogenated unsaturated hydrocarbon represented by the formula, ##EQU1## wherein R is an alkyl group having 1 to 7 carbon atoms, a vinyl group, a phenyl group, an alkyl-substituted phenyl group, a halogen atom or a hydrogen atom, and X, Y and Z which may be same or different are individually a hydrogen atom, a halogen atom or an alkyl group having 1 to 4 carbon atoms, at least one of the R, X, Y and Z being a halogen atom.
    Type: Grant
    Filed: May 21, 1970
    Date of Patent: April 27, 1976
    Assignee: Japan Synthetic Rubber Co., Ltd.
    Inventors: Koei Komatsu, Shigeyuki Nishiyama, Nobuyuki Sakabe, Akira Kogure
  • Patent number: 3951931
    Abstract: A process for the manufacture of polymeric compounds which have any desired number of functional end groups. In this process, polyfunctional organoalkali metal compounds which have been manufactured by reaction of divinylbenzene with low molecular weight organoalkali metal compounds, are reacted direct, or after prior reaction with anionically polymerizable monomers, with reactive low molecular weight compounds. The polymeric compounds which have functional end groups can be employed, for example, as emulsifiers, secondary dispersions, secondary dispersing agents or polymeric carrier substances.
    Type: Grant
    Filed: September 9, 1974
    Date of Patent: April 20, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Walther Burchard, Helmut Eschwey