GB837525A - Improvements in or relating to vulcanizing processes - Google Patents

Improvements in or relating to vulcanizing processes

Info

Publication number
GB837525A
GB837525A GB24436/58A GB2443658A GB837525A GB 837525 A GB837525 A GB 837525A GB 24436/58 A GB24436/58 A GB 24436/58A GB 2443658 A GB2443658 A GB 2443658A GB 837525 A GB837525 A GB 837525A
Authority
GB
United Kingdom
Prior art keywords
copolymers
butadiene
polymer
rubber
chloroprene
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB24436/58A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hercules Powder Co
Original Assignee
Hercules Powder Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hercules Powder Co filed Critical Hercules Powder Co
Publication of GB837525A publication Critical patent/GB837525A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/14—Peroxides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L21/00—Compositions of unspecified rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
    • C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
    • C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Covulcanized compositions of (1) natural rubber or synthetic rubbery copolymers of conjugated di-olefines and chloroprene; (2) polyethylene and copolymers of ethylene and propylene containing up to 70 mol. per cent of propylene; and (3) a peroxide of formula <FORM:0837525/IV (a)/1> where R1 is an aryl group, R6 is hydrogen, an alkyl, or aryl group and R2, R3, R4 and R5 are selected from the group consisting of hydrogen and alkyl groups of less than 4 carbon atoms, are obtained by blending and moulding in two stages each at elevated temperature. The blending temperature is sufficient to allow the rubber and polymer to become colloidal, i.e. above the crystalline melting-point of the polymer, e.g. 130 DEG to 190 DEG C. Symmetrical or unsymmetrical peroxides are listed, e.g. bis-(a ,a -dimethylbenzyl)-peroxide, and may be present in a range from 0.1 to 10% of the combined weight of rubber and polymer. Polyethylene of high or low density types may be used and copolymers with butadiene, isoprene, dipentene, and allo-ocimine are mentioned. Rubbers may be natural or rubbery polymers of butadiene, methyl butadiene, dimethyl butadiene, isoprene, pentadiene or chloroprene, and copolymers thereof with styrene, acrylonitrile or isobutylene. Fillers, e.g. clay, precipitated calcium silicate, furnace black; processing oils, antioxidants, e.g. diphenyl guanidine and vulcanizing agents, e.g. red lead, sulphur, and quinone dioxime may also be present. Specifications 471,590, 721,046, 748,588, 748,632, 748,634, 753,349, 799,392, 799,823, 801,031, 804,641, 810,023, 810,024 and U.S.A. Specifications 2,658,059, 2,692,257, 2,692,258, 2,692,259, 2,692,295, 2,700,663, 2,702,288, 2,717,889 and 2,728,755 are referred to.
GB24436/58A 1957-08-05 1958-07-29 Improvements in or relating to vulcanizing processes Expired GB837525A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US837525XA 1957-08-05 1957-08-05
US67635957A 1957-08-05 1957-08-05

Publications (1)

Publication Number Publication Date
GB837525A true GB837525A (en) 1960-06-15

Family

ID=26769686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24436/58A Expired GB837525A (en) 1957-08-05 1958-07-29 Improvements in or relating to vulcanizing processes

Country Status (2)

Country Link
DE (1) DE1290716B (en)
GB (1) GB837525A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0117015A1 (en) * 1983-01-10 1984-08-29 Tompkins Rubber Company A rubber based medical component for a medical infusion set
US4684672A (en) * 1983-01-10 1987-08-04 Buchanan Robert L Novel rubber connectors and other rubber parts for use in human infusion sets and rubber

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2787073B2 (en) * 1989-10-13 1998-08-13 ジェイエスアール株式会社 Rubber composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0117015A1 (en) * 1983-01-10 1984-08-29 Tompkins Rubber Company A rubber based medical component for a medical infusion set
US4684672A (en) * 1983-01-10 1987-08-04 Buchanan Robert L Novel rubber connectors and other rubber parts for use in human infusion sets and rubber

Also Published As

Publication number Publication date
DE1290716B (en) 1969-03-13

Similar Documents

Publication Publication Date Title
US3058944A (en) Cross-linking alpha-alkyl polymers with polysulfonazides and resulting product
US2989504A (en) Vulcanization of polymer with nu, nu&#39;-bismaleimides and compositions thereof
GB655533A (en) Improvements in or relating to stabilized age-resistant polymer compositions
NL113515C (en)
GB1326647A (en) Sulphur-containing compositions for vulcazizing rubber
GB982778A (en) Improvements in or relating to cross-linking ethylene polymers
GB837525A (en) Improvements in or relating to vulcanizing processes
GB858136A (en) An improved vulcanisation process
US2424175A (en) Vulcanization of rubber or the rubbery co-polymer of butadiene and styrene
US2453689A (en) Vulcanizing synthetic rubber with dixanthic sulfides
US2985632A (en) Gr-s cured with dicamyl peroxide and sulfur
GB942641A (en) Maleimide compounds
US2681331A (en) Synthetic rubbery tripolymers of butadiene, alkyl-butadienes, and vinyl pyridines
GB969657A (en) Production and use of nitrosoanilinonitroalkanes
US3642727A (en) Vulcanisation process
US2460581A (en) Reaction products of thiuram disulfides and alkylene imines
US3033835A (en) Curing endocyclic ring containing hydrocarbon polymers with sulfur and peroxide
US3413259A (en) Stabilized unsaturated ethylene-alpha-olefin rubbers
US3078258A (en) Sulfur vulcanization of rubbers with a 2-(3, 5-dimethyl-4-morpholinylmercapto)-benzothiazole accelerator
US2767156A (en) Vulcanization of synthetic rubber with methylene derivatives of dihydric phenols
US2273322A (en) Organic vulcanizing agent
US3268495A (en) Heat treatment of isobutylene-isoprene copolymers
US2377787A (en) Vulcanization of rubber
GB822621A (en) Vulcanisable compositions
US3092605A (en) Copolymer of a monovinyl ether of a glycol and nu-vinyl-2-oxazolidinone and rubber made by vulcanizing same