Crosslinked products prepared by ionically crosslinking a solid grade oligomer and a polymer using an ionic crosslinking agent and methods of making the same

a technology of ionic crosslinking agent and solid grade oligomer, which is applied in the field of compositions, can solve the problems of less effective sulfur-based crosslinking agent in certain lower temperature applications

Inactive Publication Date: 2019-05-09
BASF SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The method allows for the production of crosslinked products that can be used in warm-mix asphalt applications at lower temperatures, improving efficiency and reducing the need for specialized equipment, while also reducing hydrogen sulfide emissions by avoiding sulfur-based crosslinking agents, resulting in improved performance and environmental benefits.

Problems solved by technology

In addition, sulfur-based crosslinking agents are less effective for certain lower temperature applications (such as warm-mix asphalt applications conducted at temperatures ranging from 120° C.-140° C.).

Method used

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  • Crosslinked products prepared by ionically crosslinking a solid grade oligomer and a polymer using an ionic crosslinking agent and methods of making the same
  • Crosslinked products prepared by ionically crosslinking a solid grade oligomer and a polymer using an ionic crosslinking agent and methods of making the same
  • Crosslinked products prepared by ionically crosslinking a solid grade oligomer and a polymer using an ionic crosslinking agent and methods of making the same

Examples

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example 1

[0074]A copolymer derived from 50 parts by weight styrene, 50 parts by weight butadiene, and 20 parts by solid grade oligomer (SGO B-98) was produced. A styrene feed, a butadiene feed, an initiator feed comprising an aqueous solution of sodium persulfate initiator (0.6 parts by weight of the total monomers), were added over 6 hours to a pre-heated reactor (70° C.) containing water, the solid grade oligomer, sodium hydroxide (0.14 parts by weight of the total monomers), a polystyrene seed latex (1.66 parts by weight of the total monomers), and TRILON BX (0.03 parts by weight of the total monomers), an ethylenediaminetetraacetic acid commercially available from BASF Corporation (Florham Park, N.J.). The stabilization of the latex partides during polymerization was accomplished by feeding an aqueous solution of potassium oleate surfactant (3.6 parts by weight of the total monomers) over the course of the polymerization. The temperature was maintained at 70° C. throughout the polymeriza...

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Abstract

Disclosed herein are compositions comprising a crosslinked product prepared by ionically crosslinking a solid grade oligomer and a polymer using an ionic crosslinking agent. In some embodiments, the polymer is derived from a hydrophobic monomer and / or a gas-phase monomer. In some embodiments, the solid grade oligomer is reacted with a polymer comprising a hydrophobic monomer and / or a gas-phase monomer. The present disclosure also relates to methods of making the disclosed compositions. The compositions disclosed herein can be used in a variety of applications including, but not limited to, asphalt compositions, paints, coatings, carpet compositions, paper binding and coating compositions, foams, or adhesives.

Description

FIELD OF THE DISCLOSURE[0001]The present disclosure relates to compositions comprising a crosslinked product prepared by ionically crosslinking a solid grade oligomer and a polymer using an ionic crosslinking agent. The present disclosure also relates to methods of making the disclosed compositions.BACKGROUND[0002]Certain applications using crosslinking agents, for instance, asphalt modifications using sulfur-based crosslinking agents, require a minimum temperature to activate the crosslinking agent. For instance, many products comprising sulfur-based crosslinking agents require a minimum activation temperature of 120° C. or greater. Thus, particularly for asphalt, sulfur-based crosslinking agents are used in hot mix applications (from 160° C.-200° C.). In addition, sulfur-based crosslinking agents are less effective for certain lower temperature applications (such as warm-mix asphalt applications conducted at temperatures ranging from 120° C.-140° C.). There-fore, producing composi...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): C08L95/00C08L9/08C08F2/22C08L53/02C08J3/24
CPCC08L95/005C08L9/08C08F2/22C08L53/02C08L95/00C08J3/246C08L25/10C08L2555/20C08J2395/00C08J2423/20C08J2425/10Y02A30/333Y02A30/30C08F212/08C08F236/10
InventorAVRAMIDIS, KOSTAS S.
OwnerBASF SE