Ashland, Inc.

Neste Oy

Eija Valtonen

Karri Airola

Paul Mahbub

Leila Lahtinen

Salme Koskimies

Kjell Ankner

Oili Riutta

Outi F&auml;rm

Ulf Nummelin

Soile Himanen

Simo Tuominen

Pirkko Vohlonen

The invention relates to unsaturated polyester resins and more particularly polyester resin compositions curable at room temperature and comprising divinyl ethers. Unsaturated polyester resin compositions in accordance with the invention comprise 50-90 wt. % of at least one normal and/or one modified unsaturated polyester, not more than 30 wt. % of styrene, not more than 20 wt. % of at least one monofunctional and/or one multifunctional monomer, and 0.1-40 wt. % of at least one divinyl ether.

Unsaturated polyester resin compositions

A compounded unsaturated polyester resin composition having 10-90 wt % of at least one high viscosity, high molecular weight unsaturated polyester, 10-80 wt % of at least one low viscosity, low molecular weight unsaturated polyester, and 9-30 wt % of at least one monomer. The cone and plate viscosity of the high molecular weight unsaturated polyester is 1 Pas/100&deg; C. to 10 Pas/150&deg; C. and the weight average molecular weight Mw is 1,200 to 10,000. The cone and plate viscosity of the low molecular weight unsaturated polyester is 1 Pas/25&deg; C. to 4 Pas/100&deg; C., and the weight average molecular weight Mw is 400 to 3,000.

Compounded unsaturated polyester resin compositions with a reduced monomer content

The invention relates unsaturated polyester resins for the manufacture of subzero flexible, weather-resistant products. The liquid unsaturated polyester resin comprises a linear unsaturated polyester obtained by reacting 5-30 mol % of one or more ethylenically unsaturated dicarboxylic acids (A), 20-45 mol % of one or more other aliphatic or aromatic acids (B) and 40-60 mol % of two or more polyhydric alcohols and 30-60 wt % of one or more reactive monomers. The linear unsaturated polyesters have a cone and plate viscosity (I.C.I.) of 2 ps/125&deg; C.-20 ps/125&deg; C. and a molecular weight Mw of 20,000-100,000. The invention also relates to a process for the manufacture of such unsaturated polyester resins and to the use of them in applications wherein good adhesion to supporting material and flexibility at ambient and especially at low temperatures are needed.

Unsaturated polyester resin and the use of it

The present invention relates to N acyl and O acyl derivatives of N,N-bis(2,2-dimethyl-3-hydroxypropyl)amine which are produced as follows: ammonium halide, sulphate or aldehyde, and isobutyl aldehyde are subjected to condensation reaction and the obtained product is reduced to the corresponding amino alcohol. The hydrogen atoms linked to the nitrogen atom and the oxygen atom are thereafter substituted by acyl groups. The N-acylation and esterification of hydroxyl groups can be performed simultaneously using a carboxyl acid, carboxyl acid halide, or carboxyl acid anhydride. The N,N-bis(2,2-dimethyl-3-hydroxypropyl)amine derivatives can be used as polymer stabilizers, PCV plasticizers, emulsifiers, corrosion resistance agents, and metal complexing agents.

N-acyl and O-acyl derivatives of

Derivatives of N,N-bis(2,2-dimethyl-2-carboxy-ethyl)amine, manufacturing

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Porvoo, Finland

Eija Valtonen