FR1152633A - Method for adjusting the molecular weight of linear polymers of formaldehyde - Google Patents

Method for adjusting the molecular weight of linear polymers of formaldehyde

Info

Publication number
FR1152633A
FR1152633A FR1152633DA FR1152633A FR 1152633 A FR1152633 A FR 1152633A FR 1152633D A FR1152633D A FR 1152633DA FR 1152633 A FR1152633 A FR 1152633A
Authority
FR
France
Prior art keywords
formaldehyde
adjusting
molecular weight
linear polymers
polymers
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
Other languages
French (fr)
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of FR1152633A publication Critical patent/FR1152633A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/04—Polymerisation by using compounds which act upon the molecular weight, e.g. chain-transferring agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/06—Catalysts
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/08—Polymerisation of formaldehyde

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)
FR1152633D 1955-03-18 1956-03-14 Method for adjusting the molecular weight of linear polymers of formaldehyde Expired FR1152633A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US49532355A 1955-03-18 1955-03-18

Publications (1)

Publication Number Publication Date
FR1152633A true FR1152633A (en) 1958-02-21

Family

ID=23968196

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1152633D Expired FR1152633A (en) 1955-03-18 1956-03-14 Method for adjusting the molecular weight of linear polymers of formaldehyde

Country Status (4)

Country Link
BE (1) BE556300A (en)
DE (1) DE1420637A1 (en)
FR (1) FR1152633A (en)
GB (1) GB796862A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL99487C (en) * 1959-07-29
NL277628A (en) * 1961-05-12
US4377667A (en) * 1980-06-13 1983-03-22 Asahi Kasei Kogyo Kabushiki Kaisha Polyacetal and process of producing same

Also Published As

Publication number Publication date
GB796862A (en) 1958-06-18
DE1420637A1 (en) 1968-10-10
BE556300A (en)

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