Aminoplast molding compounds for products exhibiting an improved flexibility and aminoplast products exhibiting an improved flexibility
CA 2488805 C · Owner: Machherndl, Markus · Inventors: Raetzsch, Manfred; Dicke, Rene; Machherndl, Markus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to aminoplast molding compounds that are comprised of mixtures consisting of meltable 20 to 1000-ring polytriazine ethers in which , the , triazine rings are primarily linked by binding links of the NH-CHR2-O-R4-O- CHR2-, NH- and -NH-CHR2-NH- type, whereby: R2 = H C1-C7 alkyl; R4 = C2-C18 alkylene, -, CH(CH3)-CH2-O-<SB>C2-C12</SB>-alkylene-O-CH2-CH(CH3)- -CH(CH3)-CH2-, O-<SB>C2-C12</SB>-arylene-O-CH2-CH(CH3)- -CH2-CH2-O-CH2-CH2n-, -CH2- , CH(CH3)-O-CH2-CH(CH3) n- --O-CH2-CH2-CH2-CH2-n-, -(CH2)2-8-O-CO- <SB>C6-C14</SB>-arylene-CO-O-(CH2)2-8-n- -(CH2)2-8-O-CO-<SB>C2-, C12</SB>-alkylene-CO-O-(CH2)2-8-nin which n = 1 to 200. The aminoplast molding compounds are also …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed June 12, 2003 and granted May 1, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 12, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 12, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.