FR2034002A5 - Irradiation of ethylene vinylacetatecopolymers to produce w - copolymers to produce wax additives - Google Patents

Irradiation of ethylene vinylacetatecopolymers to produce w - copolymers to produce wax additives

Info

Publication number
FR2034002A5
FR2034002A5 FR7004157A FR7004157A FR2034002A5 FR 2034002 A5 FR2034002 A5 FR 2034002A5 FR 7004157 A FR7004157 A FR 7004157A FR 7004157 A FR7004157 A FR 7004157A FR 2034002 A5 FR2034002 A5 FR 2034002A5
Authority
FR
France
Prior art keywords
produce
irradiation
copolymer
ethylene
vinylacetatecopolymers
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
FR7004157A
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 FR2034002A5 publication Critical patent/FR2034002A5/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/28—Treatment by wave energy or particle radiation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Wax additives contng. is not >10% gel (pref. none) are produced by irradiation of ethylene/vinyl esters copolymer, contng. 10-80% wt. vinyl esters, with a suitable quantity of high-energy ionising radiation, lowering the initial melting index of the copolymer by at least 50%. Copolymer pref. contains 18% or >21% vinyl ester, esp. 21-35% vinyl acetate, having initial melting index 1-10 reduced below 1 in absence of antioxidant using high-energy electron radiation in atmospheric conditions. Irradiation increases (breaking extension)/(permanent extension) ratio of copolymer by less than 25%.
FR7004157A 1969-02-06 1970-02-05 Irradiation of ethylene vinylacetatecopolymers to produce w - copolymers to produce wax additives Expired FR2034002A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79698569A 1969-02-06 1969-02-06

Publications (1)

Publication Number Publication Date
FR2034002A5 true FR2034002A5 (en) 1970-12-04

Family

ID=25169588

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7004157A Expired FR2034002A5 (en) 1969-02-06 1970-02-05 Irradiation of ethylene vinylacetatecopolymers to produce w - copolymers to produce wax additives

Country Status (5)

Country Link
JP (1) JPS4910832B1 (en)
BE (1) BE745585A (en)
DE (1) DE2005487A1 (en)
FR (1) FR2034002A5 (en)
NL (1) NL7001729A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2236878A1 (en) * 1973-07-10 1975-02-07 Nat Distillers Chem Corp

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2116396B2 (en) * 1970-11-17 1973-06-29 Du Pont

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2236878A1 (en) * 1973-07-10 1975-02-07 Nat Distillers Chem Corp

Also Published As

Publication number Publication date
NL7001729A (en) 1970-08-10
DE2005487A1 (en) 1970-09-03
JPS4910832B1 (en) 1974-03-13
BE745585A (en) 1970-08-06

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Legal Events

Date Code Title Description
EM Correction of a material error concerning inscription in the national patent register