Small cell foams containing a modified dense star polymer or dendrimer as a nucleating agent

Hedstrand, David M; Tomalia, Donald A

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A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
A43 - footwear
A44 - haberdashery
A45 - hand or travelling articles
A46 - brushware
A47 - furniture
A61 - medical or veterinary science
A62 - life-saving
A63 - sports
A99 - subject matter not otherwise provided for in this section
B - performing operations
B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
B05 - spraying or atomising in general
B06 - generating or transmitting mechanical vibrations in general
B07 - separating solids from solids
B08 - cleaning
B09 - disposal of solid waste
B21 - mechanical metal-working without essentially removing material
B22 - casting
B23 - machine tools
B24 - grinding
B25 - hand tools
B26 - hand cutting tools
B27 - working or preserving wood or similar material
B28 - working cement, clay, or stone
B29 - working of plastics
B30 - presses
B31 - making articles of paper, cardboard or material worked in a manner analogous to paper
B32 - layered products
B33 - additive manufacturing technology
B41 - printing
B42 - bookbinding
B43 - writing or drawing implements
B44 - decorative arts
B60 - vehicles in general
B61 - railways
B62 - land vehicles for travelling otherwise than on rails
B63 - ships or other waterborne vessels
B64 - aircraft
B65 - conveying
B66 - hoisting
B67 - opening, closing {or cleaning} bottles, jars or similar containers
B68 - saddlery
B81 - microstructural technology
B82 - nanotechnology
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C - chemistry
C01 - inorganic chemistry
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C03 - glass
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C10 - petroleum, gas or coke industries
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C13 - sugar industry
C14 - skins
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C22 - metallurgy
C23 - coating metallic material
C25 - electrolytic or electrophoretic processes
C30 - crystal growth
C40 - combinatorial technology
C99 - subject matter not otherwise provided for in this section
D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
D04 - braiding
D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
D21 - paper-making
D99 - subject matter not otherwise provided for in this section
E - fixed constructions
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F - mechanical engineering
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F03 - machines or engines for liquids
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G - physics
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Title: Small cell foams containing a modified dense star polymer or dendrimer as a nucleating agent

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Abstract

A small cell foam having a modified dense star polymer or dendrimer is described. This modified dense star polymer or dendrimer has a highly branched interior of one monomeric composition and an exterior structure of a different monomeric composition capable of providing a hydrophobic outer shell and a particle diameter of from about 5 to about 1,000 nm with a matrix polymer.

Inventors:

Hedstrand, David M ^[1]; Tomalia, Donald A ^[1]

Midland, MI

Issue Date:: Sun Jan 01 00:00:00 EST 1995

Research Org.:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

OSTI Identifier:: 869765

Patent Number(s):: 5393797

Assignee:: Dow Chemical Company (Midland, MI)

Patent Classifications (CPCs):: C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP

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C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
C08G73/028 - {Polyamidoamines}

C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08J - WORKING-UP
C08J2479/00 - Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2461/00 - C08J2477/00
C08J9/0061 - {characterized by the use of several polymeric components}

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DOE Contract Number:: W-7405-ENG-48

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: cell; foams; containing; modified; dense; star; polymer; dendrimer; nucleating; agent; foam; described; highly; branched; interior; monomeric; composition; exterior; structure; capable; providing; hydrophobic; outer; shell; particle; diameter; 000; nm; matrix; cell foam; modified dense; outer shell; dense star; cell foams; star polymer; hydrophobic outer; composition capable; particle diameter; highly branched; nucleating agent; branched interior; matrix polymer; /521/528/

Citation Formats


                    Hedstrand, David M, and Tomalia, Donald A. Small cell foams containing a modified dense star polymer or dendrimer as a nucleating agent.  United States: N. p., 1995. 
        Web.

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                    Hedstrand, David M, & Tomalia, Donald A. Small cell foams containing a modified dense star polymer or dendrimer as a nucleating agent.  United States.

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                    Hedstrand, David M, and Tomalia, Donald A. Sun .  
        "Small cell foams containing a modified dense star polymer or dendrimer as a nucleating agent".  United States.  https://www.osti.gov/servlets/purl/869765.

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@article{osti_869765,

  title        = {Small cell foams containing a modified dense star polymer or dendrimer as a nucleating agent},

  author       = {Hedstrand, David M and Tomalia, Donald A},

  abstractNote = {A small cell foam having a modified dense star polymer or dendrimer is described. This modified dense star polymer or dendrimer has a highly branched interior of one monomeric composition and an exterior structure of a different monomeric composition capable of providing a hydrophobic outer shell and a particle diameter of from about 5 to about 1,000 nm with a matrix polymer.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Sun Jan 01 00:00:00 EST 1995},

  month        = {Sun Jan 01 00:00:00 EST 1995}

}

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Small cell foams containing a modified dense star polymer or dendrimer as a nucleating agent

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A small cell foam having a modified dense star polymer or dendrimer is described. This modified dense star polymer or dendrimer has a highly branched interior of one monomeric composition and an exterior structure of a different monomeric composition capable of providing a hydrophobic outer shell and a particle diameter of from about 5 to about 1,000 nm with a matrix polymer.
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Dense star polymers or dendrimers, modified by capping with a hydrophobic group capable of providing a hydrophobic outer shell, act as molecular nucleating agents. These modified dense star polymers or dendrimers are particularly effective for the production of small cell foams.
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