Low density, microcellular foams, preparation, and articles

Patent · 31 December 1983

OSTI ID:864869

Young, Ainslie T ^[1]; Marsters, Robert G ^[2]; Moreno, Dawn K ^[3]

---

1. Los Alamos, NM
2. Jemez Springs, NM
3. Espanola, NM

A microcellular low density foam of poly(4-methyl-1-pentene) which is particularly useful for forming targets for inertial confinement fusion has been developed. Articles made from the foam have been machined to tolerances of 0.0001 inch, although the densities of the fragile foam are low (about 10 to about 100 mg/cc) and the cell sizes are small (about 10 to about 30 .mu.m). Methods for forming the foam and articles are given; and the yield strength of the foam of the invention is higher than was obtained in other structures of this same material.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM
• DOE Contract Number: W-7405-ENG-36
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4430451
• OSTI ID: 864869
• Country of Publication: United States
• Language: English

Related Subjects

/521/264/524/
0001
10
100
30
4-methyl-1-pentene
articles
cc
cell
cell size
cell sizes
cellular foam
confinement
confinement fusion
densities
density
density foam
developed
foam
foams
forming
forming targets
fragile
fusion
inch
inertial
inertial confinement
machined
material
methods
mg
microcellular
microcellular foam
microcellular foams
obtained
particularly
particularly useful
poly
preparation
sizes
strength
structures
targets
tolerances
useful
yield
yield strength