Multilayer structure

B - Operations – Transporting – 32 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B32B 27/34 (2006.01) B32B 1/08 (2006.01) F16L 11/04 (2006.01)

Patent

CA 2601024

Disclosed is a multilayer structure having at least two layers, namely a layer A which is composed of a polyamide resin composition (a) containing 30-90 mass% of a polyamide resin (X), which is composed of a dicarboxylic acid unit containing 50-100 mol% of terephthalic acid unit and/or a naphthalene dicarboxylic acid unit and a diamine unit containing 60-100 mol% of an aliphatic diamine unit having 9-13 carbon atoms, and 70-10 mass% of an impact resistance modifier; and a layer B which is composed of a polyamide resin composition (b) containing 50-95 mass% of a polyamide resin (X'), which is composed of a dicarboxylic acid unit containing 50-100 mol% of terephthalic acid unit and/or a naphthalene dicarboxylic acid unit and a diamine unit containing 60-100 mol% of an aliphatic diamine unit having 9-13 carbon atoms, and 50-5 mass% of an impact resistance modifier. In this connection, when the ratio of the impact resistance modifier contained in the layer A is represented by Y mass% and the ratio of the impact resistance modifier contained in the layer B is represented by Y' mass%, the following relation is satisfied: Y >= Y' + 5.

La présente invention concerne une structure multicouche ayant au moins deux couches, soit une couche A composée d~une composition de résine polyamide (a) contenant 30-90 % en masse d~une résine polyamide (X), qui se compose d~une unité d~acide dicarboxylique contenant 50-100 mol% d~unité d~acide téréphthalique et/ou une unité d~acide dicarboxylique de naphtalène et une unité de diamine contenant 60-100 mol% d~une unité de diamine aliphatique ayant 9-13 atomes de carbone, et 70-10 % en masse d~un modificateur de résistance à l~impact ; et une couche B composée d~une composition de résine polyamide (b) contenant 50-95 en masse d~une résine polyamide (X'), qui se compose d~une unité d~acide dicarboxylique contenant 50-100 mol% d~unité d~acide téréphthalique et/ou une unité d~acide dicarboxylique de naphtalène et une unité de diamine contenant 60-100 mol% d~une unité de diamine aliphatique ayant 9-13 atomes de carbone, et 50-5 % en masse d~un modificateur de résistance à l~impact. Dans ce contexte, lorsque le rapport du modificateur de résistance à l~impact contenu dans la couche A est représenté par Y % en masse et que le rapport du modificateur de résistance à l~impact contenu dans la couche B est représenté par Y'% en masse, les conditions relatives à la relation suivante sont satisfaites : Y 3 Y' + 5.

LandOfFree

Say what you really think

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

Rating

Multilayer structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFCA-PAI-O-1869594

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