Abstract:
The present invention relates to a novel ester monomer susceptible to ring opening polymerization where the monomer comprise a functional group that may be transformed into thiols or S-S groups which allows further functionalization. The present invention also relates to polymers and co-polymers derived from said monomer.
Abstract:
Die vorliegende Erfindung betrifft ein Dimerfettsäure-Polyesterdiol-Reaktionsprodukt, welches herstellbar ist durch Umsetzung von (a) Dimerfettsäuren mit (b) mindestens einem Polyesterdiolallgemeinen Strukturformel (I), wobei R für einen divalenten Rest umfassend 2 bis 10 Kohlenstoffatome steht, R 1 und R 2 unabhängig voneinander für geradkettige oder verzweigte Alkylenreste mit 2 bis 10 Kohlenstoffatomen stehen, X und Y unabhängig voneinander für O, S oder NR 3 stehen, worin R 3 für Wasserstoff oder einen Alkylrest mit 1 bis 6 Kohlenstoffatomen steht, und m und n entsprechend so gewählt sind, dass das Polyesterdiol ein zahlenmittleres Molekulargewicht von 450 bis 2200 g/mol besitzt, wobei die Komponenten (a) und (b) in einem molaren Verhältnis von 0,7/2,3 bis 1,3/1,7 eingesetzt werden und das resultierende Dimerfettsäure-Polyesterdiol-Reaktionsprodukt ein zahlenmittleres Molekulargewicht von 1200 bis 5000 g/mol und eine Säurezahl
Abstract:
The present invention relates to the use of a compound of formula (I) : wherein: - R represents –OH or –NH 2 ;- A 1 represents a divalent alkylene radical, straight or branched, having from 2 to 20 carbon atoms; - A 2 represents a divalent alkylene radical, straight or branched, having from 1 to 20 carbon atoms; - X 1 and X 2 represent, independently of each other, –NH- or –O-;- A 3 represents a divalent alkylene radical, straight or branched, having from 1 to 10 carbon atoms; - Z represents a hydrogen or a group of formula (A'): wherein A 1 , A 3 and R are as defined above in formula (I), for the preparation of a polymer chosen among polyurethane, polyester and polyamide.
Abstract:
A diol from which a resin material having high processability and a high refractive index can be manufactured, a polycarbonate resin and a polyester resin which is a polymer of the diol, and a molded article and an optical element formed of the polymer. The diol is represented by the general formula (1) shown below; the polycarbonate resin and the polyester resin are polymers thereof; and the molded article and the optical element are formed of the polymers, wherein R1 and R2 each independently denote one of a hydrogen atom and an alkyl group having 1 or more and 6 or less carbon atoms; Q denotes one of an oxyethylene group, a thioethylene group and a single bond.
Abstract:
Die Erfindung betrifft eine Polyester-Masterbatch für die Herstellung von kationisch anfärbbaren Polyestern und/oder Copolyestern, der 3 bis einschließlich 30 Mol-% einer SuIfoisophthalsäurenatriumsalz -Verbindung bezogen auf den mindestens einen Polyester und/oder Copolyester des Polyester-Masterbatchs enthält.
Abstract:
The present invention relates to a hydroxy- sulphureous acid, to a method for preparation of the hydroxysulphureous acid and to products based on said hydroxysulphureous acid, to methods for preparation of said products and to use of said products, wherein said hydroxysulphureous acid is used as building blocks for polymer systems, e g aqueous polymer systems such as inks, coatings, and adhesives.
Abstract:
The invention provides novel polyesters, fibers and films, nonwovens from the fibers and disposable products of the polyesters such as diapers. The products are degradable under the conditions typically existing in waste composting processes, have low ingredient costs and yet provide strength and toughness properties adequate for end uses such as in disposable diapers. The copolyesters are based upon polyethylene terephthaltate copolymerized with a monomer containing an alkali metal or alkaline earth metal sulfo group, a polyethylene ether, such as diethylene glycol, and include units from aliphatic hydroxyacids selected for their melting points being lower than their decomposition temperatures.