POLYMERS CONTAINING HEXAGONAL BORON NITRIDE PARTICLES COATED WITH TURBOSTRATIC CARBON AND PROCESS FOR PREPARING SAME

Salah Boussaad

Patent

Atlas literature

Patent

US 8,039,527

POLYMERS CONTAINING HEXAGONAL BORON NITRIDE PARTICLES COATED WITH TURBOSTRATIC CARBON AND PROCESS FOR PREPARING SAME

Salah Boussaad

2011-10-18·US

Claims

Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.

3 independent · 12 dependent

1
Independenth-BNturbostratic carbon coatingpolymer
A polymeric composite composition comprising a polymer having dispersed therein a loading of particles of hexagonal boron nitride having a coating of turbostratic carbon.
1. 2
  Dependent← claim 1h-BNturbostratic carbon coating
  The composition of Claim 1 wherein the hexagonal boron nitride particles are encapsulated by the coating of turbostratic carbon.
2. 3
  Dependent← claim 1turbostratic carbon coating
  The composition of Claim 1 wherein the coating is characterized by a plurality of layers.
3. 4
  Dependent← claim 1turbostratic carbon coating
  The composition of Claim 1 wherein the coating ranges in thickness from 5 nm to 5000 nm.
4. 5
  Dependent← claim 1h-BN
  The composition of Claim 1 wherein the loading is 10% to 60% by weight.
5. 6
  Dependent← claim 1polyimide
  The composition of Claim 1 wherein the polymer is a polyimide.
6. 7
  Dependent← claim 1h-BN
  The composition of Claim 1 wherein the hexagonal boron nitride is in the form of platelets characterized by a thickness of 0.1 to 5 micrometers and maximum in- plane dimension of 1 to 200 micrometers.
8
Independenth-BNturbostratic carbon coatingpolymerpolymeric composite article
An article comprising a polymer having dispersed therein a loading of particles of hexagonal boron nitride having a coating of turbostratic carbon.
1. 14
  Dependent← claim 8polyimide
  The article as in of any of the preceding claims 8 throu g h 13 wherein the polymer is a polyimide.
15
Independenth-BNturbostratic carbon coatingpolyamic acid
A process f the-preees comprising the ste p s: organic solvent, particles of hexagonal boron nitride casting a ﬁlm therefrom, extracting said organic ﬁlm. dispersing in a solution of a polyamic acid in an having a coating of turbostratic carbon, solvent, and imidizing said polyamic acid in said

Device structures

Layer stacks claimed or described, ordered top of device to substrate.

polymeric composite article

h-BNdispersed filler

polymercomposite matrix

polymeric composite film

h-BNdispersed filler

polymercomposite matrix

wire or cable

polymercomposite insulation or jacket

Materials

Materials described outside the worked examples.

hexagonal boron nitride particles

h-BN

Filler Particles

turbostratic carbon coating

Particle Coating

polymer

Process steps

Additional fabrication and treatment steps described in the patent.

Composite Film Fabrication

Step 1

Process details

steps:dispersing hBN particles coated with turbostratic carbon in a solution of polyamic acid in an organic solvent, casting a film therefrom, extracting said organic solvent, imidizing said polyamic acid in said film

Materials:h-BNturbostratic carbon coating

Reported properties

Performance values and ranges asserted in the specification or claims.

Property	Value	Material
Thickness	5–5000 nm	—
Thickness	0.1–5 µm

Why these are connected

Related documents with shared materials, methods, properties, or citations.

POLYMERS CONTAINING HEXAGONAL BORON NITRIDE PARTICLES COATED WITH TURBOSTRATIC CARBON AND PROCESS FOR PREPARING SAME | Matter42 Literature