Method of fabricating nested shells and resulting product

Patent · Fri Jan 01 00:00:00 EST 1982

OSTI ID:864194

Henderson, Timothy M.; Kool, Lawrence B.

A multiple shell structure and a method of manufacturing such structure wherein a hollow glass microsphere is surface treated in an organosilane solution so as to render the shell outer surface hydrophobic. The surface treated glass shell is then suspended in the oil phase of an oil-aqueous phase dispersion. The oil phase includes an organic film-forming monomer, a polymerization initiator and a blowing agent. A polymeric film forms at each phase boundary of the dispersion and is then expanded in a blowing operation so as to form an outer homogeneously integral monocellular substantially spherical thermoplastic shell encapsulating an inner glass shell of lesser diameter.

• Research Organization: KMS Fusion Inc., Ann Arbor, MI (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC08-78DP40030
• Assignee: The United States of America as represented by the United States Department of Energy (Washington, DC)
• Patent Number(s): 4,327,192
• Application Number: 06/194134
• OSTI ID: 864194
• Resource Relation: Patent File Date: 1980 Oct 06
• Country of Publication: United States
• Language: English

Related Subjects

method
fabricating
nested
shells
resulting
product
multiple
shell
structure
manufacturing
hollow
glass
microsphere
surface
treated
organosilane
solution
render
outer
hydrophobic
suspended
oil
phase
oil-aqueous
dispersion
organic
film-forming
monomer
polymerization
initiator
blowing
agent
polymeric
film
forms
boundary
expanded
operation
form
homogeneously
integral
monocellular
substantially
spherical
thermoplastic
encapsulating
inner
lesser
diameter
lesser diameter
polymeric film
resulting product
blowing agent
outer surface
aqueous phase
substantially spherical
hollow glass
multiple shell
oil phase
surface treated
shell encapsulating
glass microsphere
glass shell
film forms
phase dispersion
/428/521/523/