US 4,925,992 AGranted

Perfluorinated 2-ISO propyl derivative compounds

AssigneeAir Products and Chemicals, Inc.

InventorsFrank K. Schweighardt, Webb I. Bailey, John T. Lileck, John K. Graybill, Eugene G. Lutz

Life of this patent

Estimating the term…

A novel composition of the formula: ##STR1## wherein the carbon rings are fully fluorinated.

Dependent claims

The perfluorinated compound having the formula:

Dependencies are inferred from the claim text.

B23K 35/386
Selection of media, e.g. special atmospheres for surrounding the working area: for condensation soldering
C07C 22/00
Cyclic compounds containing halogen atoms bound to an acyclic carbon atom
C07C 23/36
With condensed rings none of which is aromatic: halogenated completely or partially hydrogenated naphthalenes
B23K
Soldering or unsoldering

From the US filing history. Foreign family members aren’t listed.

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