Aluminosilicate stabilized halogenated polymers

C - Chemistry – Metallurgy – 01 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C01B 33/26 (2006.01) C08K 3/34 (2006.01) C08L 27/04 (2006.01) C08L 57/08 (2006.01)

Patent

CA 2379966

The present invention describes halogenated polymer resins stabilized with one or more co-stabilizers, at least one co-stabilizer comprising a synthetic crystalline aluminosilicate of the formula M2/n O . Al2O3 . ySiO2 . wH2O, in which M is a charge balancing canon, n is the valence of M and is 1 or 2, y is the number of moles of SiO2 per mole of Al2O3, and is 1.85 to 15 with a preferred range of about 2 to 5, and w is the moles of water of hydration per molecule of said aluminosilicate, wherein said aluminosilicate has a mean crystallite size in the range of about 0.01 µm to about 1 µm and a mean particle size in the range of about 0.1 to 10 µm. Also described is a method for stabilizing halogenated polymers such as PVC and CPVC by incorporating said aluminosilicate into a formulation thereof. A zeolite process improvement for creating a dehydrated zeolite that does not substantially rehydrate is also described. The zeolite created by such process is ideal for use as a co-stabilizer of halogenated polymer resins.

L'invention concerne des résines polymères halogénées, stabilisées à l'aide d'au moins un co-stabilisant, lequel comprend un aluminosilicate cristallin synthétique correspondant à la formule M2/nO . Al2O3 . ySiO2 . wH2O, dans laquelle M représente un cation d'équilibrage de charge, n possède la valence de M et vaut 1 ou 2, y représente le nombre de moles de SiO2 par mole de A12O3, et est compris entre 1,85 et 15, de préférence entre environ 2 et 5, et w représente les moles d'eau d'hydratation par molécule dudit aluminosilicate. Cet aluminosilicate possède une dimension de cristallite dont la grandeur est comprise entre environ 0,01 ñm et environ 1ñm, et une dimension particulaire moyenne de l'ordre d'environ 0,1 à 10 ñm environ. L'invention concerne également un procédé de stabilisation de polymères halogénés, tels que du PVC et du CPVC, consistant à incorporer cet aluminosilicate dans une formulation de ces polymères. L'invention concerne encore un procédé d'amélioration de zéolithe, destiné à créer une zéolithe déshydratée qui ne se réhydrate sensiblement pas. La zéolithe ainsi créée est idéale pour être utilisée en tant que co-stabilisant de résines polymères halogénées.

LandOfFree

Say what you really think

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

Rating

Aluminosilicate stabilized halogenated polymers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aluminosilicate stabilized halogenated polymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aluminosilicate stabilized halogenated polymers will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1654901

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