Synthetic oligomeric oils
AssigneeRohm Co., Ltd.
InventorsClaudia Beyer, Ruediger Jelitte, Horst Pennewiss, Heinz Jost
Life of this patent
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Abstract
Synthetic oils comprising 5-100 percent by weight of an oligomer of A) 0-75 wt. % of at least one 1-alkene, B) 20-100 wt. % of at least one (meth)acrylic acid ester of the formula ##STR1## wherein R is hydrogen or methyl and R.sub.1 is optionally branched alkyl or cycloalkyl, and C) 0-65 wt. % of a (meth)acrylic acid ester of the formula ##STR2## wherein R' is hydrogen or methyl and R.sub.2 is alkyl substituted with at least one hydroxy group or is ##STR3## wherein R.sub.3 and R.sub.4 are hydrogen or methyl, R.sub.5 is hydrogen or optionally branched alkyl, but if n is 1, then R.sub.5 is exclusively optionally branched alkyl.
Claims6
A co-oligomer adaptable to use as a synthetic oil, or a mixture of such a co-oligomer with up to 95 percent by weight of a conventional synthetic oil, said co-oligomer consisting of
- A) 10-70 percent by weight of at least one 1-alkene have 8 to 14 carbon atoms in the molecule,
- B) the balance being at least one (meth)acrylic acid ester of the formula ##STR8## where R is hydrogen or methyl and R.sub.1 is alkyl or cycloalkyl having 8 to 20 carbon atoms.
The method of making a synthetic oil which comprises mixing up to 95 percent by weight of a conventional synthetic oil with a co-oligomer consisting of
- A) 10-70 percent by weight of at least one 1-alkene have 8 to 14 carbon atoms in the molecule,
- B) the balance being at least one (meth)acrylic acid ester of the formula ##STR9## where R is hydrogen or methyl and R.sub.1 is alkyl or cycloalkyl having 8 to 20 carbon atoms.
Dependencies are inferred from the claim text.