Polyester polyols based on terephthalic acid

C - Chemistry – Metallurgy – 08 – G

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C08G 18/42 (2006.01) C08G 18/40 (2006.01) C08G 63/48 (2006.01) C08J 9/00 (2006.01)

Patent

CA 2739845

Polyester polyol containing the esterification product of a) 10 to 70 mol-% of a dicarboxylic acid composition containing a1) from 50 to 100 mol-% of a terephthalic acid-based material selected from terephthalic acid, dimethyl terephthalate and polyalkylene terephthalate and mixtures thereof, a2) 0 to 50 mol-% of phthalic acid, phthalic acid anhydride or isophthalic acid, a3) 0 to 50 mol-% of one or more dicarboxylic acids, b) 2 to 30 mol-% of one or more fatty acids and/or fatty acid derivatives and/ or benzoic acid, c) 10 to 70 mol-% of one or more aliphatic or cycloaliphatic diols with 2 to 18 C atoms or alkoxylates thereof, d) 2 to 50 mol-% of a highly functional polyol selected from the group consisting of glycerin, alkoxylated glycerin, trimethylol propane, alkoxylated trimethylol propane, pentaerythritol and alkoxylated pentaerythritol, wherein at least 200 mmol, preferably at least 500 mmol and especially preferred at least 800 mmol of polyols d) with an OH functionality of >= 2.9 are converted per kg of polyester polyol.

L'invention concerne un polyester polyol qui contient le produit d'estérification de a) 10 à 70 % en moles d'une composition d'acide dicarboxylique contenant a1) 50 à 100 % en moles d'un matériau à base d'acide téréphtalique choisi parmi l'acide téréphtalique, le diméthyltéréphtalate et le polyalkylènetéréphtalate et leurs mélanges, a2) 0 à 50 % en moles d'acide phtalique, d'anhydride phtalique ou d'acide isophtalique, a3) 0 à 50 % en moles d'un ou de plusieurs acides dicarboxyliques, de b) 2 à 30 % en moles d'un ou de plusieurs acides gras, dérivés d'acides gras et/ou acide benzoïque, de c) 10 à 70 % en moles d'un ou de plusieurs diols aliphatiques ou cycloaliphatiques ayant 2 à 18 atomes de C ou d'alcoxylates de ces diols, de d) 2 à 50 % en moles d'un polyol de fonctionnalité supérieure choisi dans le groupe composé de glycérine, glycérine alcoxylée, triméthylolpropane, triméthylolpropane alcoxylé, pentaérythritol et pentaérythritol alcoxylé, au moins 200 mmoles, de préférence au moins 500 mmoles et de manière particulièrement préférée au moins 800 mmoles de polyols d) à fonctionnalité OH = 2,9 réagissant par kg de polyester polyol.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Polyester polyols based on terephthalic acid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyester polyols based on terephthalic acid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyester polyols based on terephthalic acid will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1827849

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.