Laboratory vessel having hydrophobic coating and process for manufacturing same
First Claim
1. A laboratory vessel, said vessel comprising a vessel material having a surface intended to contact a liquid and a coating applied to at least a portion of the surface, wherein said coating comprises the polymerization product of at least one substantially non-branched fluorinated monomer, said fluorinated monomer having from about 3 to about 20 carbon atoms and at least one terminal trifluoromethyl group, said coating comprising a coating surface having a surface area populated with 30% by area or more trifluoromethyl groups and a surface energy of about 22 dynes/cm or lower at 20°
- C.
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0 Petitions
Accused Products
Abstract
Laboratory vessels are coated on an operational surface thereof with a hydrophobic coating polymer or reactive monomer to form a coating having an exposed surface populated with 30% by area or more terminal trifluoromethyl groups. Laboratory vessels coated with such coating solutions are provided having extremely low surface energies and high resistance to solvent attack. Methods of forming hydrophobic coatings on laboratory vessels are also provided and include methods of forming exposed coating surfaces having populations of from about 30% by area to 100% by area trifluoromethyl groups. The hydrophobic coatings may be prepared from solutions, suspensions or powdered materials containing a fluoroalkyl ethylenically unsaturated monomer substantially free of any crosslinking, having from about 3 to about 20 carbon atoms, and containing at least one terminal trifluoromethyl group, or containing a polymerization product of such a monomer. The trifluoromethyl containing component may instead be preinjected or coinjected onto a surface of a molded vessel.
217 Citations
37 Claims
- 1. A laboratory vessel, said vessel comprising a vessel material having a surface intended to contact a liquid and a coating applied to at least a portion of the surface, wherein said coating comprises the polymerization product of at least one substantially non-branched fluorinated monomer, said fluorinated monomer having from about 3 to about 20 carbon atoms and at least one terminal trifluoromethyl group, said coating comprising a coating surface having a surface area populated with 30% by area or more trifluoromethyl groups and a surface energy of about 22 dynes/cm or lower at 20°
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10. A laboratory vessel, said vessel comprising a vessel material having a surface intended to contact a liquid and a coating applied to at least a portion of the surface, wherein said coating comprises the polymerization product of at least one fluorinated monomer, said fluorinated monomer having from about 3 to about 20 carbon atoms and at least one terminal trifluoromethyl group, said coating having a surface area populated with 30% by area or more trifluoromethyl groups, and a surface energy of about 22 dynes/cm or lower at 20°
- C., and further comprising a micropowder which provides a rough surface to said coating.
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15. A laboratory vessel, said vessel comprising a vessel material having a surface intended to contact a liquid, a first coating and a second coating, said first coating being applied to at least a portion of the surface, wherein said first coating comprises the polymerization product of at least one fluorinated monomer, said fluorinated monomer having from about 3 to about 20 carbon atoms and at least one terminal trifluoromethyl group, said first coating having a surface area populated with 30% by area or more trifluoromethyl groups, and a surface energy of about 22 dynes/cm or lower at 20°
- C., said second coating comprising the polymerization product of a second fluorinated monomer, said second fluorinated monomer having from about 3 to about 20 carbon atoms, at least one terminal trifluoromethyl group, and a micropowder which provides said second coating with a rough surface, said second coating having a surface area populated with 30% by area or more trifluoromethyl groups and a surface energy of about 22 dynes/cm or lower at 20°
C., wherein the second coating forms a sample retaining barrier on said surface for retaining an aqueous sample within said barrier, and said first coating is substantially free of surface roughness and surrounds the second coating.
- C., said second coating comprising the polymerization product of a second fluorinated monomer, said second fluorinated monomer having from about 3 to about 20 carbon atoms, at least one terminal trifluoromethyl group, and a micropowder which provides said second coating with a rough surface, said second coating having a surface area populated with 30% by area or more trifluoromethyl groups and a surface energy of about 22 dynes/cm or lower at 20°
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16. A process for coating a laboratory vessel with a hydrophobic material comprising a polymerization product of a fluorinated monomer, said process comprising the steps of:
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providing a laboratory vessel, said vessel having a surface intended to contact a liquid; applying a first coating solution or suspension to at least a portion of the surface to form a coating on said surface, said coating solution or suspension comprising a polymerization product of a substantially non-branched fluorinated monomer having from about 3 to about 20 carbon atoms and at least one terminal trifluoromethyl group, said coating comprising a coating surface having a surface area populated with at least about 30% by area trifluoromethyl groups and a surface energy of about 22 dynes/cm or lower at 20°
C., said coating solution or suspension further comprising a fluorinated fluorocarbon solvent; andremoving solvent from the coated surface to form a dried hydrophobic coating. - View Dependent Claims (17, 19, 20, 22, 35)
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18. A process for coating a laboratory vessel with a hydrophobic material comprising a polymerization product of a fluorinated monomer, said process comprising the steps of:
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providing a laboratory vessel, said vessel having a surface which contacts a liquid; applying a first coating solution or suspension to at least a portion of the surface to form a coating on said surface, said coating solution or suspension comprising a polymerization product of a fluorinated monomer having from about 3 to about 20 carbon atoms and at least one terminal trifluoromethyl group, said coating having a surface area populated with at least about 30% by area trifluoromethyl groups and a surface energy of about 22 dynes/cm or lower at 20°
C. said coating solution or suspension further comprising a fluorinated fluorocarbon solvent;removing solvent from the coated surface to form a dried hydrophobic coating; and subsequently applying a second coating solution or suspension on at least a portion of said surface of said vessel to form a second coating, and removing solvent from the second coating, said second coating solution or suspension being different from said first solution or suspension and comprising a polymerization product of a fluorinated monomer having from about 3 to about 20 carbon atoms and at least one terminal trifluoromethyl group, said second coating comprising a surface having a surface area populated with 30% by area or more trifluoromethyl groups and a surface energy of about 22 dynes/cm or lower at 20°
C.
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21. A process for coating a laboratory vessel with a hydrophobic material comprising a polymerization product of a fluorinated monomer, said process comprising the steps of:
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providing a laboratory vessel, said vessel having a surface which contacts a liquid; applying a first coating solution or suspension to at least a portion of the surface to form a coating on said surface, said coating solution or suspension comprising a polymerization product of a fluorinated monomer having from about 3 to about 20 carbon atoms and at least one terminal trifluoromethyl group, a micropowder which provides a rough surface to said coating, and a fluorinated fluorocarbon solvent, said coating having a surface area populated with at least about 30% by area trifluoromethyl groups and a surface energy of about 22 dynes/cm or lower at 20°
C.; andremoving solvent from the coated surface to form a dried hydrophobic coating.
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23. A process for coating a laboratory vessel with a hydrophobic material comprising a polymerization product of a fluorinated monomer, said process comprising the steps of:
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providing a laboratory vessel, said vessel having a surface which comes in contact with a liquid; applying a coating formulation to at least a portion of the surface to form a coating on said surface, said coating formulation comprising a polymerization product of a substantially non-branched fluorinated monomer having from about 3 to about 20 carbon atoms and at least one terminal trifluoromethyl group, said coating comprising a surface having a surface area populated with at least about 30% by area trifluoromethyl groups and a surface energy of about 22 dynes/cm or lower at 20°
C. - View Dependent Claims (24, 25, 27, 36)
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28. A composition of matter comprising at least one fluorinated component, and a micropowder, said at least one fluorinated component comprising a fluorinated monomer or a polymerization product thereof, said fluorinated monomer having from about 3 to about 20 carbon atoms and at least one terminal trifluoromethyl group, said composition being able to provide a coating upon application to a surface of an article, said coating having an exposed surface area populated with 30% by area or more trifluoromethyl groups and a surface energy of about 22 dynes/cm or lower at 20°
- C., and wherein said micropowder provides a rough surface to said coating.
- View Dependent Claims (29, 30, 31, 32, 33)
Specification