GB1553316A - Process for molecular weight control of poly - Google Patents

Process for molecular weight control of poly

Info

Publication number
GB1553316A
GB1553316A GB3881176A GB3881176A GB1553316A GB 1553316 A GB1553316 A GB 1553316A GB 3881176 A GB3881176 A GB 3881176A GB 3881176 A GB3881176 A GB 3881176A GB 1553316 A GB1553316 A GB 1553316A
Authority
GB
United Kingdom
Prior art keywords
poly
molecular weight
weight control
control
molecular
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
GB3881176A
Other languages
English (en)
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering 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 Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of GB1553316A publication Critical patent/GB1553316A/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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
    • C08G18/3819—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen
    • C08G18/3838—Low-molecular-weight compounds having heteroatoms other than oxygen having nitrogen containing cyano groups
    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/71—Monoisocyanates or monoisothiocyanates
    • 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
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
GB3881176A 1975-10-03 1976-09-20 Process for molecular weight control of poly Expired GB1553316A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61929575A 1975-10-03 1975-10-03

Publications (1)

Publication Number Publication Date
GB1553316A true GB1553316A (en) 1979-09-26

Family

ID=24481304

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3881176A Expired GB1553316A (en) 1975-10-03 1976-09-20 Process for molecular weight control of poly

Country Status (6)

Country Link
JP (1) JPS5243900A (OSRAM)
BE (1) BE846858A (OSRAM)
DE (1) DE2644242A1 (OSRAM)
FR (1) FR2326437A1 (OSRAM)
GB (1) GB1553316A (OSRAM)
NL (1) NL7610908A (OSRAM)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6467148A (en) * 1987-09-07 1989-03-13 Kawakami Shoji Kk Preservation of turnip and japanese radish with controlling atmosphere
JPH01252618A (ja) * 1987-12-28 1989-10-09 Tonen Sekiyukagaku Kk 複素環式共重合体の製造法

Also Published As

Publication number Publication date
NL7610908A (nl) 1977-04-05
FR2326437B1 (OSRAM) 1981-02-27
BE846858A (fr) 1977-04-01
DE2644242A1 (de) 1977-04-14
FR2326437A1 (fr) 1977-04-29
JPS5243900A (en) 1977-04-06

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee