IP Library › Granted Patent US 6,953,540
Granted Patent B2
US 6,953,540 · App. 09/951,049 · Granted Oct 11, 2005

Continuous process for the preparation of encapsulated cyclopropenes

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Quick Facts
Patent No.
US 6,953,540
App. No.
09/951,049
Granted
Oct 11, 2005
Kind
B2
Abstract

The present invention relates to a continuous method to prepare encapsulated cyclopropenes, a method to purify cyclopropene gas, and a method to prepare an α-cyclodextrin/cyclopropene complex.

Claims (1)

1. A method of purifying a cyclopropene gas prepared by reaction of an allyl compound with a non-nucleophilic strong base comprising scrubbing the cyclopropene gas in a scrubber with a reactive solvent mixture to remove residual allyl compound to give purified cyclopropene gas.

Assignments (5)
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT REEL 036243, FRAME 0244 Recorded Apr 3, 2023
From: BANK OF MONTREAL
To: AGROFRESH, INC.
Reel/Frame 063238/0848 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT REEL 053316, FRAME 0561 Recorded Apr 3, 2023
From: BANK OF MONTREAL
To: AGROFRESH, INC.
Reel/Frame 063238/0901 →
PATENT SECURITY AGREEMENT Recorded Jul 27, 2020
From: AGROFRESH, INC.
To: BANK OF MONTREAL, AS COLLATERAL AGENT
Reel/Frame 053316/0561 →
SECURITY INTEREST Recorded Jul 31, 2015
From: AGROFRESH INC.
To: BANK OF MONTREAL, AS ADMINISTRATIVE AGENT
Reel/Frame 036243/0244 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 17, 2015
From: ROHM AND HAAS COMPANY; DOW GLOBAL TECHNOLOGIES LLC; DOW AGROSCIENCES LLC
To: AGROFRESH INC
Reel/Frame 035932/0335 →