Process for preparing linear monofunctional and telechelic difun

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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525269, 525270, 525309, 525310, 526136, 526139, 526140, 526141, 526142, 526166, 526169, 5261691, 5261693, 526281, 526308, 526309, C08G 6112

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056210477

ABSTRACT:
This invention relates to a process for preparation of non-crosslinked linear monofunctional and telechelic difunctional unsaturated polymers wherein the functional groups are acrylate or methacrylate groups. The average functionality number of the monofunctional unsaturated polymers is at least 0.7, as determined by nuclear magnetic resonance spectroscopy (NMR). The average functionality number of the telechelic difunctional polymers is at least 1.7, as determined by NMR. Alkyl acrylates or alkyl methacrylates are reacted with cyclic olefinic non-conjugated compounds or unsaturated hydrocarbon polymers to prepare monofunctional and difunctional polymers. The process is substantially free of side reactions comprising double bond migration and cyclization.

REFERENCES:
patent: 3798175 (1974-03-01), Streck et al.
patent: 3857825 (1974-12-01), Streck et al.
patent: 4080491 (1978-03-01), Kobayashi et al.
patent: 4095033 (1978-06-01), Kupper
patent: 4950826 (1990-08-01), Zerpner et al.

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