You have to wait for at least ten seconds or so until all the pee goes into your diaper before you take it off.
You have to wait about ten seconds until the diaper absorbs the pee before you take it off.
「高ポリマー」のことは
Super-absorbent polymer
Water-absorbing polymer
のように言えますが、質問の場合は、下のように言うのが自然でしょう。
例:
You have to wait for at least ten seconds or so until all the pee goes into your diaper before you take it off.
「オムツを脱ぐ前に、おしっこがオムツに吸収されるまで最低10秒くらいは待たないと。」
wait for at least ten seconds で「最低10秒待つ」
until all the pee goes into your diaper で「おしっこが全部オムツに吸収されるまで」
take off で「脱ぐ」
You have to wait about ten seconds until the diaper absorbs the pee before you take it off.
「オムツを脱ぐ前にオムツがおしっこを吸収するまで10秒くらい待たないと。」
wait about ten seconds で「約10秒待つ」
until the diaper absorbs the pee で「オムツがおしっこを吸収するまで」
ご参考まで!