GB1257971A - - Google Patents

Info

Publication number
GB1257971A
GB1257971A GB1257971DA GB1257971A GB 1257971 A GB1257971 A GB 1257971A GB 1257971D A GB1257971D A GB 1257971DA GB 1257971 A GB1257971 A GB 1257971A
Authority
GB
United Kingdom
Prior art keywords
july
polymers
propiolactones
lactone
heading
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
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 filed Critical
Publication of GB1257971A publication Critical patent/GB1257971A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D315/00—Heterocyclic compounds containing rings having one oxygen atom as the only ring hetero atom according to more than one of groups C07D303/00 - C07D313/00

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,257,971. Condensation polymers &c. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 16 July, 1970 [18 July, 1969], No. 36347/69. Heading C3R. [Also in Division C2] Propiolactones stabilized by incorporating thereinto a minor amount of SO 2 (e.g. 0À00005- 2% by weight of SO 2 based on lactone) upon polymerization yield polymers of improved properties.
GB1257971D 1969-07-18 1969-07-18 Expired GB1257971A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3634769 1969-07-18

Publications (1)

Publication Number Publication Date
GB1257971A true GB1257971A (en) 1971-12-22

Family

ID=10387323

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1257971D Expired GB1257971A (en) 1969-07-18 1969-07-18

Country Status (5)

Country Link
BE (1) BE753196A (en)
DE (1) DE2035414A1 (en)
FR (1) FR2057750A5 (en)
GB (1) GB1257971A (en)
NL (1) NL7010504A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7100545A (en) * 1971-01-14 1972-07-18
AU658175B2 (en) * 1991-04-12 1995-04-06 Novartis Ag Use of 2-iminothiazolidin-4-one derivatives as novel pharmaceutical active ingredients

Also Published As

Publication number Publication date
DE2035414A1 (en) 1971-02-25
NL7010504A (en) 1971-01-20
FR2057750A5 (en) 1971-05-21
BE753196A (en) 1971-01-11

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees