RO68424B - PROCEDEU PENTRU PREPARAREA POLITEREFTALATILOR DE METIL MATISATI CU STABILITATE îMBUNATATITA FATA DE LUMINA - Google Patents

PROCEDEU PENTRU PREPARAREA POLITEREFTALATILOR DE METIL MATISATI CU STABILITATE îMBUNATATITA FATA DE LUMINA

Info

Publication number
RO68424B
RO68424B RO78000A RO7800074A RO68424B RO 68424 B RO68424 B RO 68424B RO 78000 A RO78000 A RO 78000A RO 7800074 A RO7800074 A RO 7800074A RO 68424 B RO68424 B RO 68424B
Authority
RO
Romania
Prior art keywords
light stability
impoved
polyterephthalates
spliced
methyl
Prior art date
Application number
RO78000A
Other languages
English (en)
Other versions
RO68424A (ro
Inventor
Edith Gross
Echard Husing
Peter Lohmann
Ernst Peter Schmidt
Original Assignee
Veb Chemiefaserkombinat Schwarza "Wilhelm Pieck"
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 Veb Chemiefaserkombinat Schwarza "Wilhelm Pieck" filed Critical Veb Chemiefaserkombinat Schwarza "Wilhelm Pieck"
Publication of RO68424A publication Critical patent/RO68424A/ro
Publication of RO68424B publication Critical patent/RO68424B/ro

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  • Polyesters Or Polycarbonates (AREA)

Abstract

Procedeu pentru prepararea polietereftalatilor de metil matisati, cu stabilitate îmbunatatita fata de lumina, prin esterificarea directa a acidului tereftalic cu polimetilenglicol în prezenta de catalizatori si agenti de matisare, caracterizat prin aceea ca înainte, în timpul sau dupa policondensare, se adauga 0,001...0,1% greutate fata de polimer, fosfati, fosfiti sau pirofosfati de mangan sau de cobalt.
RO78000A 1973-03-15 1974-03-13 PROCEDEU PENTRU PREPARAREA POLITEREFTALATILOR DE METIL MATISATI CU STABILITATE îMBUNATATITA FATA DE LUMINA RO68424B (ro)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD16946973A DD102714A1 (ro) 1973-03-15 1973-03-15

Publications (2)

Publication Number Publication Date
RO68424A RO68424A (ro) 1983-04-29
RO68424B true RO68424B (ro) 1983-04-30

Family

ID=5490446

Family Applications (1)

Application Number Title Priority Date Filing Date
RO78000A RO68424B (ro) 1973-03-15 1974-03-13 PROCEDEU PENTRU PREPARAREA POLITEREFTALATILOR DE METIL MATISATI CU STABILITATE îMBUNATATITA FATA DE LUMINA

Country Status (4)

Country Link
CS (1) CS177970B1 (ro)
DD (1) DD102714A1 (ro)
HU (1) HU168011B (ro)
RO (1) RO68424B (ro)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2828464C2 (de) * 1978-06-29 1980-08-28 Hoechst Ag, 6000 Frankfurt Verfahren zur Herstellung linearer, lichtstabilisierter mit TiO2 mattierter Polyester
DE2828463C2 (de) * 1978-06-29 1980-08-28 Hoechst Ag, 6000 Frankfurt Verfahren zur Herstellung linearer, lichtstabilisierter mit TiO2 mattierter Polyester
US6632917B1 (en) * 2000-06-02 2003-10-14 Arteva North America S.A.R.L. Production of polyester using preblended cobalt-phosphorus

Also Published As

Publication number Publication date
RO68424A (ro) 1983-04-29
DD102714A1 (ro) 1973-12-20
HU168011B (ro) 1976-02-28
CS177970B1 (ro) 1977-08-31

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