C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 5/08 (2006.01) C03C 25/26 (2006.01) C03C 25/30 (2006.01)
Patent
CA 2184509
An aqueous chemical treatment or size for silaceous fibers and fillers has a polyolefin compatible film forming polymer, organo functional coupling agent, and at least one stabilizer to produce a polyolefin reinforcing article. The stabilizer is one or more of the following: alkali metal and alkaline earth metal and ammonium, phosphinates, phosphites, hypophosphites, sulfites and bisulfites, organic phosphinates and/or phosphites and mixtures thereof and in combination with other types of antioxidants like hindered phenols, diarylamines, thiothers, wherein the amount of stabilizer is in an effective stabilizing amount. Optionally the size can have one or more partial esters of a branched carboxylic acid copolymer present.
Traitement chimique aqueux ou encollage de fibres et de charges siliceuses possédant un polymère de formation de pellicule compatible avec les polyoléfines, un agent de couplage organofonctionnel et au moins un stabilisant, de façon à obtenir un article de renforcement de polyoléfines. Le stabilisant consiste en un ou plusieurs des éléments suivants: métal alcalin et métal alcalino-terreux et ammonium, phosphinates, phosphites, hypophosphites, sulfites et bisulfites, phosphinates organiques et/ou phosphites organiques, ainsi que leurs mélanges et combinés à d'autres types d'antioxydants, tels que des phénols inhibés, des diarylamines, des thioéthers, le stabilisant étant présent en quantité efficace. L'encollage peut éventuellement comporter un ou plusieurs esters partiels d'un copolymère d'acide carboxylique ramifié.
Meesters Laura A.
Schell Philip L.
Borden Ladner Gervais Llp
Ppg Industries Ohio Inc.
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