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Polymeric materials for capturing formaldehyde

A technology of polymer materials and polymer compositions, applied in other chemical processes, separation methods, separation of dispersed particles, etc., can solve problems such as elimination

Active Publication Date: 2017-08-29
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Another disadvantage of impregnation is that it removes the capacity of activated carbon for adsorption of volatile organic compounds (VOCs)

Method used

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  • Polymeric materials for capturing formaldehyde
  • Polymeric materials for capturing formaldehyde
  • Polymeric materials for capturing formaldehyde

Examples

Experimental program
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Effect test

Embodiment 15

[0109] Embodiment 15 is the method of embodiment 14, wherein the adsorbent polymer material is microporous, mesoporous, or both.

[0110]Embodiment 16 is the method of any one of embodiments 1 to 15, wherein the adsorbent polymer material has a mass equal to at least 100 m 2 / g of BET surface area.

[0111] Embodiment 17 is the method of any one of embodiments 1 to 16, wherein the adsorbent polymer material is in the form of beads or granules.

[0112] Embodiment 18 is a polymeric material comprising the reaction product of a mixture comprising a) an adsorbent polymeric material having a plurality of aromatic rings and having at least one formula -SO 2 R 5 and each aromatic ring in the adsorbent polymer material has at most one group of formula -SO 2 R 5 and b) formaldehyde. The sorbent polymer material comprises the reaction product of a precursor polymer material and a sulfonyl-containing compound. Precursor polymeric materials include the polymerized product of a poly...

Embodiment 25

[0121] Embodiment 25 is the polymeric material of embodiment 24, wherein the polyvinylaromatic monomer is divinylbenzene, trivinylbenzene, divinylbenzene substituted with one or more alkyl groups, or Trivinylbenzene substituted with one or more alkyl groups.

[0122] Embodiment 26 is the polymeric material of any one of embodiments 18 to 25, wherein the polymerizable composition further optionally comprises up to 25% by weight of a monovinylaromatic monomer or represented by one or more alkyl groups A radical substituted monovinylaromatic monomer, wherein the weight % is based on the total weight of monomers in the polymerizable composition.

[0123] Embodiment 27 is the polymeric material of any one of embodiments 18 to 26, wherein the polymerizable composition comprises 1% to 99% by weight of a monomer of formula (I), 0% to 25% by weight of Monovinylaromatic monomer and 1% to 99% by weight polyvinylaromatic monomer, wherein the weight % is based on the total weight of monom...

Embodiment 1

[0159] A chlorosulfonic acid / 1,2-dichloroethane (DCE) solution was prepared by adding 3.0 mL of chlorosulfonic acid to 15.8 mL of DCE cooled to 0 °C in an ice / water bath. This solution was added to a 20 mL vial containing 0.250 g of the material prepared in Preparation 1 (SBI-DV homopolymer) while the vial was submerged in an ice / water bath. After 5 minutes at 0°C, the capped vial was removed from the ice bath and placed in a sand bath at 90°C. After 18 hours at this elevated temperature, the reaction was stopped by vacuum filtration to isolate solid polymer material. The solid was washed with 20 mL CH 2 Cl 2 Wash twice.

[0160] The resulting solid was then placed in a 20 mL vial containing aqueous ammonium hydroxide prepared by adding 2.0 mL of concentrated ammonium hydroxide to 6 mL of deionized water. The vial was capped and shaken using a wrist shaker at room temperature overnight. The reaction was quenched by isolation of solid polymer material by vacuum filtration....

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Abstract

Sorbent polymeric material suitable for capturing formaldehyde, polymeric material resulting from the capture of formaldehyde by the sorbent polymeric material, and methods for capturing formaldehyde are provided. The sorbent polymeric material has multiple aromatic rings and can be formed by initially preparing a precursor polymeric material from a polymerizable composition that contains a free-radically polymerizable spirobisindane monomer. The precursor polymeric material is subsequently treated with a sulfonyl-containing compound to form groups of formula -SO2R5 where each R5 is independently -NH2 or -NR6-Q-NR6R7. Each R6 is hydrogen or an alkyl. Each R7 is hydrogen or -C(=NH)-NH2. Each Q is a single bond, alkylene, or a group of formula -(Q1-NR6)x-Q2- where each Q1 is an alkylene, each Q2 is an alkylene, and x is in an integer in a range of 1 to 4.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Patent Application No. 62 / 080817, filed November 17, 2014, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] Described herein are sorbent polymer materials suitable for trapping formaldehyde, polymer materials resulting from trapping formaldehyde from the sorbent polymer materials, and methods for trapping formaldehyde. Background technique [0004] Formaldehyde is a known carcinogen and allergen. To this end, the U.S. Occupational Safety and Health Administration (OSHA) has set exposure limits for formaldehyde vapor at 0.75 ppm for 8 hours and at 2 ppm for 15 minutes. Despite its toxicity, formaldehyde is an industrial compound used in large quantities. For example, formaldehyde is used to make a wide variety of polymeric materials used in a variety of building materials including foam insulation, particle boar...

Claims

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Application Information

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IPC IPC(8): C08F8/32C08F8/36C08F112/34C08F212/36C08F212/34C08F12/32C08F12/34B01J20/26
CPCB01J20/261B01J20/265C08F8/32C08F8/36C08F12/32C08F12/34C08F212/36C08F2800/10C08F112/34C08F212/34B01D53/02B01D53/72B01D53/82B01D2253/202B01D2253/306B01D2257/702B01D2257/708B01D2258/06B01J20/28057B01J20/264B01J20/28061B01J20/3085
Inventor M·S·文德兰德
Owner 3M INNOVATIVE PROPERTIES CO
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