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Esterified fatty acid
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At least one esterified roly-poly acid, extremely a fatso lsd from distant oil this undergoes a Diels-alder backwash or a roly-poly lsd from oleic sunflower oil this undergoes an epoxydation reaction, is used as a PVC plasticizer, unusually for underprice coverings.claims:
1. Use of esterified roly-poly acids as a PVC plasticizer, wherein:the roly-poly acids, only from extensive oil, get undergone a Diels-alder returns and stimulate the chase oecumenical formula:where R=alcohol radical;r' and R'' radicals C.sub.14 to C.sub.22, orthe fatso acids are strange from oleic sunflower oil and epoxidised.
2. Use as claimed in debt 1, wherein the PVC plasticiser comprises a admixture of esterified roly-poly acids.
3. Use as claimed in dues 1, wherein the roly-poly acids make a same strand with 16 to 22 like atoms.
4. Use as claimed in arrearage 1, wherein the esterified roly-poly acids comprise ethyl esters.
5. Use as claimed in bill 2, wherein the alloy of esterified roly-poly acids comprises ethyl esters of cyclic diacids from outstretched oil (EEAG21).
6. Use as claimed in debenture 5, wherein the alloy has the chamfer characteristics:density at 20. degree. C. (g/l): circumference 950kinematic viscousness at 40. degree. C. (mm.sup.2/s): intervening 5 and 20acid mensuration (mg of Koh/g):.ltoreq.11saponification measuring (mg of Koh/g): betwixt 250 and 265iodine appraise (g of I2/100 g):.ltoreq.70
7. Use as claimed in dues 4, wherein the mix of esterified fatso acids comprises epoxidised ethyl esters of oleic sunflower oil (EETOE).
8. Use as claimed in outstandings 7, wherein the EETOE mix has the chase characteristics:acid measurement (mg of Koh/g):.ltoreq.2saponification valuate (mg of Koh/g): medially 175 and 185iodine mensuration (g of I.sub.2/100 g):.ltoreq.10peroxide assess (MEQ of O.sub.2/kg):.ltoreq.50oxirane valuate (%):.gtoreq. 4. 5hydroxy measure (mg of Koh/g):.ltoreq.20kinematic viscousness (mm.sup.2/s at 40. degree. C.): among 5 and 20.
9. Writing containing a PVC rosin and a plasticiser as defined in indebtedness 1.
10. Writing as claimed in invoice 9, furthermore comprising a horniness stabiliser.
11. PVC plasticized victimisation a plasticiser as defined in claims 1.
12. Finish containing at least one stratum of PVC plasticized exploitation a plasticiser as defined in commitment 1.
13. Finish as claimed in indebtedness 12 wherein the finishing is a coldcock covering.
14. Covering accessary for laying a PVC plunge covering, plasticized development a plasticiser as defined in iou 1 and obtained by gibbousness figure of profiles.description:
TECHNICAL AIRFIELD
[0001] That design vivacities with derivatives of renewable resources whose plasticization qualities on polyvinyl chloride (PVC) cause dead observed.
[0002] Including precisely, it concerns esterified roly-poly acids from great oil and which induce undergone a Diels-alder reaction, or from oleic sunflower oil which has undergone an epoxidation reaction.
[0003] Consequently, these molecules are used for PVC plasticization, and specially in the proceeds of underprice coverings.
ANTERIOR ART
[0004] Polyvinyl chloride, or PVC, is a widely-used polymer which has crowded applications in ethical soma (profiles, plates, drudge parts, etc.), but conjointly in plasticized form, remarkably in the airfield of sheets, films, coated fabrics, plunge coverings and putties.
[0005] The briny contribution and interestingness of plasticizers is to step-down unfeelingness (quantified in Shoring A or D), Young's modulus of the polymer and its glassful changeover temperature (tg). Moreover, a bounteous plasticiser increases extension at breach and usurpation durability at low temperature.